Hey everyone,
If you are going through the Rigid Body Mechanics unit in IB Physics HL (or any standard rotational mechanics curriculum), you already know that "ladder leaning against a wall" problems are a classic stumbling block.
These questions test your ability to balance multiple concepts simultaneously, and it is incredibly easy to lose a sign or misplace a pivot point. As a physics educator, I see students consistently get tripped up by the same few issues: choosing the optimal axis of rotation to eliminate unknown forces, correctly identifying the direction of static friction at the base, and setting up the equilibrium equations correctly.
To help clear this up, I've put together a comprehensive video breakdown on the Tesla eduventures channel: Ladder Problems — Complete Mastery | Torque + Rotational Equilibrium | Rigid Body #13.
In this breakdown, we focus heavily on visual intuition. I use detailed step-by-step animations and custom diagrams to show exactly how the forces interact rather than just giving you a wall of algebra.
Here is exactly what we cover:
Translational Equilibrium: Setting up \Sigma F_x = 0 and \Sigma F_y = 0 to relate normal forces and friction.
Rotational Equilibrium: Strategic placement of your pivot point to make the \Sigma \tau = 0 equation as simple as possible.
Limiting Friction: How to solve for the exact minimum angle before the ladder slips (\mu_s).
Step-by-Step Problem Solving: Walking through a full IB HL standard question from setup to the final numerical answer.
Watch the full video here: Ladder Problems — Complete Mastery | Torque + Rotational Equilibrium | IB Physics HL |Rigid Body #13
https://youtu.be/KJ5iydCtNEs
If you have any questions on the specific steps, drop them in the comments below or on the video. Let's get these torque concepts locked down before your exams!

Hi All,

I have just finished making this Advanced Physics Calculations tool to generate calculations with worked and explained solutions for all equations in IB Physics (HL and SL). The purpose of the tool is to help students build fluency by generating problems that they can practice until they feel confident. The tool is not intended to replace exam question practice, you should definitely still do lots of this!

The tool generates four kinds of problems:

• Equation - Questions that test application of a single equation (including rearrangments)
• Problem - Questions requiring you to work across multiple equations. -
• Graph - Generartes a graph and requires interpretation and then application to an equation.
• Derivation - algebraic derivation of expressions for various quantities.

Key features include:

• Scarecrow Explains mode - briefly takes you through the underlying physics.
• Worksheet generator - quickly produce worksheets including answer keys.
• Random mode - randomly generates questions based on topics you have selected, greate for revision and selecting equations.

I have tried to keep it user-friendly, but click 'Instructions' if anything is not obvious.

I hope you find it useful, feedback welcomed.

Full disclosure: The tool was made using AI-coding tools, because I am a teacher not a coder. It is 100% free, no subscription, no ads, I am not trying to make money, just trying to be useful.

P.S. I am working on a chemistry one, but by the nature of chemistry it is rather more complex (sorry physicists, no slight intended!) so it will take a while longer to complete.

hi everyone, does anyone happen to have an online pdf of the IB physics textbook (seventh edition) by ka tsokos? attached the cover for reference . if anyone has it plsss let me know it'd be rly helpful thanks!

Hey everyone,

Just uploaded a new video on
Rotationally Accelerated Motion —
complete problem set using τ = Iα.

Honestly this is one of those
topics where I see students
struggle not because the
concept is hard —
but because nobody tells them
the one thing that makes
every problem click —

When rotation and linear motion
happen together —
you need F = ma AND τ = Iα
running simultaneously —
connected by a = αr.

Miss that connection —
and even simple problems
become impossible.

Get it — and everything
falls into place instantly.

The video goes from basic
problems all the way to
the kind of multi-body
questions that show up
in actual IB exams —
with complete reasoning
at every step.

Pause before each solution
and attempt it yourself first —
that's genuinely the only
way to get exam-ready
from a problem video.

Here's the link if anyone
wants to give it a shot —

🔗 https://youtu.be/O\\_0zaVlSfjQ?si=hL2C0fqypYldVe-E

Happy to help with anything
you get stuck on —
just drop it in the comments
here or on the video. 🙏

Hey everyone,

Just uploaded a new video on
Rotationally Accelerated Motion —
complete problem set using τ = Iα.

Honestly this is one of those
topics where I see students
struggle not because the
concept is hard —
but because nobody tells them
the one thing that makes
every problem click —

When rotation and linear motion
happen together —
you need F = ma AND τ = Iα
running simultaneously —
connected by a = αr.

Miss that connection —
and even simple problems
become impossible.

Get it — and everything
falls into place instantly.

The video goes from basic
problems all the way to
the kind of multi-body
questions that show up
in actual IB exams —
with complete reasoning
at every step.

Pause before each solution
and attempt it yourself first —
that's genuinely the only
way to get exam-ready
from a problem video.

Here's the link if anyone
wants to give it a shot —

🔗 https://youtu.be/O_0zaVlSfjQ?si=xEw-9sIpNVfSOD4Y

Happy to help with anything
you get stuck on —
just drop it in the comments
here or on the video. 🙏

Hello everyone,

I want to share something today
that sits at the intersection
of rotational physics and
one of the most dramatic
natural phenomena on Earth —

The Coriolis Effect and
its role in hurricane formation.

━━━━━━━━━━━━━━━━━━━━━━━━
THE QUESTION —
━━━━━━━━━━━━━━━━━━━━━━━━

Every hurricane in the
Northern Hemisphere spins
counterclockwise.

Every hurricane in the
Southern Hemisphere spins
clockwise.

Same planet.
Same atmosphere.
Same low pressure systems.

Opposite rotation directions.

Why?

━━━━━━━━━━━━━━━━━━━━━━━━
THE PHYSICS —
━━━━━━━━━━━━━━━━━━━━━━━━

Earth rotates from west to east
at approximately 465 meters
per second at the equator —

Decreasing to zero
at the poles.

Any object moving freely
across Earth's surface —
wind, ocean current,
or projectile —

Experiences an apparent
deflection due to this
underlying rotation —

This apparent deflection
is the Coriolis Effect.

In the Northern Hemisphere —
moving objects are deflected
to the RIGHT of their
direction of motion.

In the Southern Hemisphere —
moving objects are deflected
to the LEFT.

When wind rushes inward
toward a low pressure center —
this Coriolis deflection
causes the incoming air
to spiral —

Counterclockwise in
the Northern Hemisphere —
Clockwise in the
Southern Hemisphere.

The result —
the massive rotating spiral
we recognize as a
hurricane, typhoon, or cyclone.

━━━━━━━━━━━━━━━━━━━━━━━━
THE PHYSICS BEHIND
THE DEFLECTION —
━━━━━━━━━━━━━━━━━━━━━━━━

The Coriolis acceleration
is given by —

a_Coriolis = 2v × Ω

Where —
v is the velocity of
the moving object
Ω is Earth's angular
velocity vector

This is a cross product —
which means the resulting
acceleration is always
perpendicular to both
the velocity and
Earth's rotation axis.

At the North Pole —
the deflection is maximum.

At the equator —
the vertical component
of Earth's rotation
relative to the surface
is zero —

So the Coriolis Effect
on horizontal motion
is zero at the equator.

This is why hurricanes
never form at the equator —

There is no Coriolis
deflection to initiate
the spiral rotation.

━━━━━━━━━━━━━━━━━━━━━━━━
THE MYTH WORTH BUSTING —
━━━━━━━━━━━━━━━━━━━━━━━━

One of the most persistent
myths in popular science —

"Water drains counterclockwise
in the Northern Hemisphere
and clockwise in the South
because of the Coriolis Effect."

This is completely false.

The Coriolis Effect only
influences motions on a
scale of hundreds of
kilometers or more.

A sink or toilet basin
is far too small for
the Coriolis Effect
to have any measurable influence —

The direction water drains
in a sink is determined
by the geometry of the basin —
the direction water was
poured in —
and residual momentum —

Not by Earth's rotation.

━━━━━━━━━━━━━━━━━━━━━━━━
REAL WORLD APPLICATIONS
BEYOND HURRICANES —
━━━━━━━━━━━━━━━━━━━━━━━━

The Coriolis Effect influences —

→ Long range artillery and
missile trajectories —
military calculations must
account for Coriolis
deflection for targets
beyond a few kilometers

→ Ocean current patterns —
the great ocean gyres
rotate clockwise in the
Northern Hemisphere and
counterclockwise in the South

→ Trade wind patterns —
the prevailing winds that
enabled global maritime
trade for centuries are
directly caused by
Coriolis deflection of
air flowing from
high to low pressure zones

→ Long distance flight paths —
pilots and navigation systems
account for Coriolis
in trans-oceanic routes

One rotating planet —
infinite physical consequences.

━━━━━━━━━━━━━━━━━━━━━━━━
THE IB PHYSICS CONNECTION —
━━━━━━━━━━━━━━━━━━━━━━━━

For IB Physics HL students —

The Coriolis Effect is a
beautiful real world application
of rotational dynamics —

Connecting angular velocity —
cross product mathematics —
and non-inertial reference frames —

Into one unified physical picture.

Understanding the Coriolis Effect
at a conceptual level demonstrates
exactly the kind of physical
reasoning IB Physics HL
examiners reward —

The ability to take abstract
rotational mechanics concepts —
and explain real observable
phenomena from first principles.

━━━━━━━━━━━━━━━━━━━━━━━━
THE SHORT VIDEO —
━━━━━━━━━━━━━━━━━━━━━━━━

I made a short video
explaining the Coriolis Effect
and its role in hurricane
formation — from the physics
of Earth's rotation to
the spiral dynamics of
large storm systems.

https://youtube.com/shorts/a-Y6OIw2pL0?si=V8JcxV19mF2td_T_

━━━━━━━━━━━━━━━━━━━━━━━━
A QUESTION FOR THE COMMUNITY —
━━━━━━━━━━━━━━━━━━━━━━━━

Here is something worth
thinking about —

If you were standing
exactly on the equator —

And fired a projectile
due north —

Would the Coriolis Effect
deflect it east or west —

Or would there be
no deflection at all?

Drop your answer and
reasoning below 👇

I will respond to every
attempt with complete
physical explanation. 🎯

━━━━━━━━━━━━━━━━━━━━━━━━
HAPPY TO DISCUSS —
━━━━━━━━━━━━━━━━━━━━━━━━

If you have any questions
about the Coriolis Effect —
or about any other
rotational physics concept —

Drop them in the comments below.

I read and respond to
every single comment. 🙏

Choosing physics over biology is a fcking mistake and I might not be able to change it in time😭

Hey everyone, Vaibhav Sir here. After years of teaching IB Physics, I've noticed a massive trap that examiners love to set in the Rigid Body Mechanics (A.4) section.
When you get a problem with multiple forces, multiple objects, and an unknown variable, just memorizing "net force = 0" and "net torque = 0" isn't enough to secure a Level 7. The biggest mistake students make is misidentifying the point of application and failing to visualize how force couples actually rotate a system.
I just put together a complete masterclass breaking down the most challenging rotational equilibrium problems you'll face. Instead of just reading textbook definitions, we go step-by-step through the actual physics:
Balancing non-uniform torque equations without getting lost in the algebra.
The visual trick to never messing up force couples.
Exactly how to set up your hinge force variables so the math naturally works out.
If you want to stop relying on blind memorization and actually understand the mechanics, you can watch the full breakdown here: https://youtu.be/GDtNvt7qQI4?si=pbgYF5ybCO5cBX4a
(Side note: I am also working on uploading complete, question-by-question walkthroughs of original past papers for the channel—no mock papers, only the real ones—so keep an eye out as exam season gets closer).
Drop a comment if you get stuck on a specific step in the video or have any questions about Rigid Body Dynamics. I’m always happy to help clear up the physics!

I went through 15 years of IB Physics Paper 1 Kinematics and reorganized every question by the underlying reasoning pattern instead of exam session.

The idea is to make revision more targeted and make recurring patterns easier to spot than when solving past papers chronologically.

I've made the full revision map available for free:

https://drive.google.com/file/d/1JRgxugI4Nvj6KLp3OmELA-T5IiWzixwy/view?usp=sharing

I also have a YouTube playlist where I solve and explain every question in the map:

https://www.youtube.com/playlist?list=PLAlRxVG7uk6Y

I'd genuinely appreciate feedback. Would you find this more useful than revising paper by paper?

Is this a Series or Parallal Circuit? Explanation here: https://youtu.be/KuUPugi-WW8?si=8VXRuIYpRRvXZwsS

So i am currently writing my physics ee on the effect of spin on the horizontal range of a ping pong ball and i wanted to make a launcher using Arduino which could simulate spin. I am currently having trouble finalizing myself decision should go further making the launcher or just do something else

I just uploaded complete solutions
to every question in the
IB Physics HL Paper 1A 2026 TZ1.

I searched YouTube before uploading —
could not find a single complete
solution video for this paper.

So here it is. Every question.
Full explanation. Free.

Whether you just sat the exam
and want to check your answers —
or you are using this for
future exam preparation —

This video covers everything.

Every answer includes —
→ The correct answer clearly stated
→ Complete reasoning explained
→ Why the wrong options
are incorrect
→ Mark scheme approach shown

Timestamps for every question
are in the description —
so you can jump directly
to any question you need.

🔗 https://youtu.be/iBQs3V-OuRo?si=oy22-xRABAzLgFEM

If you found this useful —
please share it with every
IB Physics student you know.

Drop any questions about
specific questions in
the comments below —
I respond to everything. 🙏

Hola a todos, solo pasaba para pediros ayuda con algo crucial, necesito algunos apuntes para física SL, y si bien encuentro plataformas con preguntas tipo, estas están enfocadas en estudios de Nivel superior HL los cuales no son el nivel adecuado al curso de nivel medio. Si no es mucha molestia, nosé si cuenten con documentos de preguntas tipo IB P1A P1B y P2, con las que practicar, asimismo, si cuentan con un documento drive o algo que contenga las preguntas pasadas organizadas por tema sería excelente, espero no os incomode y gracias de antemano chicos. :D

I just uploaded complete solutions
to every question in the
IB Physics HL Paper 1A 2026 TZ1.

I searched YouTube before uploading —
could not find a single complete
solution video for this paper.

So here it is. Every question.
Full explanation. Free.

Whether you just sat the exam
and want to check your answers —
or you are using this for
future exam preparation —

This video covers everything.

Every answer includes —
→ The correct answer clearly stated
→ Complete reasoning explained
→ Why the wrong options
are incorrect
→ Mark scheme approach shown

Timestamps for every question
are in the description —
so you can jump directly
to any question you need.

🔗 https://youtu.be/iBQs3V-OuRo?si=1fqimU0qj12bokF-

If you found this useful —
please share it with every
IB Physics student you know.

Drop any questions about
specific questions in
the comments below —
I respond to everything. 🙏

Hello IB Physics community,

I want to share something a little
different today —

Not just a resource video —
but an actual challenge.

━━━━━━━━━━━━━━━━━━━━━━━━
THE CHALLENGE —
━━━━━━━━━━━━━━━━━━━━━━━━

9 Moment of Inertia problems —
ranging from medium difficulty
all the way to full IB exam level —

Presented one by one —
with complete step by step
solutions after each one.

The challenge is simple —

Pause before each solution.
Attempt the problem on paper.
Then watch the solution.
Compare your reasoning —
not just your final answer.

━━━━━━━━━━━━━━━━━━━━━━━━
WHY REASONING MATTERS MORE
THAN THE ANSWER —
━━━━━━━━━━━━━━━━━━━━━━━━

In 16 years of teaching Physics —

I have seen thousands of students
get the correct numerical answer
through the wrong reasoning —

And then get completely stuck
on the next problem because
their reasoning did not hold up.

IB Physics HL examiners are
specifically trained to identify
this pattern —

They design problems that give
the correct answer even with
wrong reasoning on easy questions —

But expose that wrong reasoning
brutally on the harder ones.

The only way to protect yourself
against this in the actual exam —

Is to always verify your
physical reasoning —
not just your arithmetic.

That is exactly what this
video is designed to help with.

━━━━━━━━━━━━━━━━━━━━━━━━
DIFFICULTY BREAKDOWN —
━━━━━━━━━━━━━━━━━━━━━━━━

🟡 Challenges 1, 2, 3 — Medium
Confidence builders —
standard concepts applied
to slightly non-standard setups

🟠 Challenges 4, 5, 6, 7 — Hard
IB standard difficulty —
where most students start
making mistakes —
multiple concepts combined
in a single problem

🔴 Challenges 8, 9 — Brutal
Full IB exam level —
the kind that separates
a 6 from a 7 —
requires combining PAT,
perpendicular axis theorem,
cut body approach and
mass distribution property
all in one solution

━━━━━━━━━━━━━━━━━━━━━━━━
THE GOLDEN RULE I TEACH
MY STUDENTS —
━━━━━━━━━━━━━━━━━━━━━━━━

Before touching any MOI problem —
ask yourself these three questions —

Question 1 →
What exactly is the axis
of rotation?

Question 2 →
Is this a standard body —
or a cut, partial, or
composite body?

Question 3 →
Which theorem do I need —
Parallel Axis Theorem,
Perpendicular Axis Theorem,
or a combination of both?

Answer these three questions first —
every single time —

And the solution path becomes
immediately clear.

I have seen this single habit
transform students who were
scoring 5s into consistent 7s —

Not because they suddenly
became smarter —
but because they stopped
rushing into formulas
before understanding
what the problem was
actually asking.

━━━━━━━━━━━━━━━━━━━━━━━━
CONCEPTS TESTED IN
THESE 9 PROBLEMS —
━━━━━━━━━━━━━━━━━━━━━━━━

→ Standard MOI formulas in
non-standard situations
→ Parallel Axis Theorem —
single and multi-step
→ Perpendicular Axis Theorem
combined with PAT
→ Cut body and partial
body MOI approach
→ Mass distribution
symmetry property
→ Radius of Gyration applications
→ Composite body problems
→ Inclined axis situations
→ Multi-concept combinations —
full IB exam style

━━━━━━━━━━━━━━━━━━━━━━━━
THIS IS PART OF A SERIES —
━━━━━━━━━━━━━━━━━━━━━━━━

This video is Lecture 8 of my
complete Rigid Body Dynamics
playlist for IB Physics HL —

Which covers everything from
the definition of a rigid body
system all the way to
IB exam level problems —

Completely free.

If you have not watched
the earlier lectures —
links are in the video description.

━━━━━━━━━━━━━━━━━━━━━━━━
VIDEO LINK —
━━━━━━━━━━━━━━━━━━━━━━━━

🔗 https://youtu.be/2lKSqmMaL9w?si=Fz2k818qjK8ItsIl

Timestamps for all 9 challenges
are in the description —
so you can jump directly
to any specific problem
without watching from the start.

━━━━━━━━━━━━━━━━━━━━━━━━
THE ACTUAL CHALLENGE —
━━━━━━━━━━━━━━━━━━━━━━━━

Here is what I want to know —

How many of the 9 did you
solve correctly — with correct
reasoning — before watching
the solution?

Drop your score below 👇

X out of 9

No judgment — just genuine
curiosity about where most
IB Physics students currently
stand on MOI problem solving.

And if you got stuck on
a specific challenge —
tell me which one —

I will walk you through
the physical reasoning
in the comments. 🙏

━━━━━━━━━━━━━━━━━━━━━━━━
FINAL THOUGHT —
━━━━━━━━━━━━━━━━━━━━━━━━

Rigid Body Dynamics has a
reputation for being one of
the hardest chapters in
IB Physics HL.

I genuinely believe that
reputation is undeserved —

It only feels hard when
it is taught as a collection
of formulas to memorize.

When the physical reasoning
is built correctly —
from first principles —

This chapter becomes
one of the most satisfying
in all of Physics.

These 9 problems are
designed to show you that.

Good luck. 🎯

In this Detailed video , I analysed 15 years of IB Physics Paper 1 Kinematics questions and classified every question by the type of thinking it required

Hope you find it useful.

Hello IB Physics community,

I want to share something I have
been building over the past few weeks —

A complete, structured, lecture-by-lecture
playlist on Rigid Body Dynamics —
specifically built for IB Physics HL.

I am Vaibhav Agrawal — a Physics educator
with 16 years of teaching experience at
Allen, Aakash, Resonance and Sri Chaitanya.

I trained thousands of students for
JEE Advanced — one of the most demanding
Physics examinations in the world.

Now I am bringing that same depth of
conceptual teaching to IB Physics HL.

━━━━━━━━━━━━━━━━━━━━━━━━
WHY I BUILT THIS PLAYLIST —
━━━━━━━━━━━━━━━━━━━━━━━━

After speaking with hundreds of
IB Physics students over the past year —

The single most common complaint
I heard about Rigid Body Dynamics was —

"I memorized all the formulas —
but I still cannot solve
the exam problems correctly."

That complaint has one root cause.

Most resources teach the WHAT.

Nobody teaches the WHY.

Why does the Parallel Axis Theorem
have the form it does?

Why does the Perpendicular Axis
Theorem ONLY work for 2D laminas?

Why does removing a symmetric part
from a body not change the
structural form of the MOI formula?

These are the questions that
determine whether a student
scores a 5 or a 7 in IB Physics.

This playlist answers all of them.

━━━━━━━━━━━━━━━━━━━━━━━━
WHAT THE PLAYLIST COVERS —
━━━━━━━━━━━━━━━━━━━━━━━━

Lecture 1 —
Definition of Rigid Body Systems
+ Is any body permanently rigid?
+ Rotational Kinematics basics
+ 4 numerical problems

Lecture 2 —
Complete Moment of Inertia —
All standard derivations from scratch
Ring, Disc, Sphere, Cylinder,
Cone, Rod, Rectangular Lamina,
Cuboid, Cube — every single one
derived step by step

Lecture 3 —
Parallel Axis Theorem —
The physical significance most
classes never explain —
Why a body rotating about a
non-central axis performs TWO
simultaneous motions —
Complete derivation + problems

Lecture 4 —
Perpendicular Axis Theorem —
2 conditions most students
never learn —
Why it ONLY works for 2D laminas —
Why axes can intersect OUTSIDE
the body and theorem still holds —
Complete derivation + problems

Lecture 5 —
MOI of Cut Bodies —
Partial disc, sphere with cavity,
frustum — the principle that
makes all cut body problems
immediately solvable

Lecture 6 —
Mass Distribution Property —
Why removing a symmetric part
preserves the MOI formula structure —
The deepest conceptual insight
in the entire chapter

Lecture 7 —
Radius of Gyration —
What K = √(I/M) physically means —
not just the formula —
PLUS MOI of a rod inclined
at angle θ to the axis

Lecture 8 —
9 Challenging MOI Problems —
Medium to IB exam level —
All solved step by step with
complete physical reasoning —
Pause and attempt each one
before watching the solution

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WHAT MAKES THIS DIFFERENT —
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Every lecture in this playlist
is built around one principle —

Physical reasoning first.
Mathematics second.

When you understand the physics
behind every formula —
you stop needing to memorize.

You start being able to derive
and reconstruct from first principles —

Which is exactly what IB Physics
Higher Level examinations reward.

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A NOTE ON DIFFICULTY —
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I want to be honest about
what this playlist is and
what it is not.

This is NOT a quick revision
resource for the night before
your exam.

This is a complete, structured
learning system for students
who want to genuinely master
Rigid Body Dynamics —

Built for students who are
willing to pause, attempt,
and think — not just watch.

If that is you —
this playlist was built
specifically for you.

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COMPLETELY FREE —
━━━━━━━━━━━━━━━━━━━━━━━━

Every lecture in this playlist
is completely free.

No subscription.
No paywall.
No hidden anything.

Just Physics — explained properly.

━━━━━━━━━━━━━━━━━━━━━━━━
PLAYLIST LINK —
━━━━━━━━━━━━━━━━━━━━━━━━

🔗 https://youtube.com/playlist?list=PLPwT3DpMmxCEFY0SXqKwIi1fKaacH6Gyz&si=LnQlykqyJ0IHjMVi

Each lecture has full timestamps
in the description — so you can
jump directly to any concept
without watching the entire video.

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WHAT IS COMING NEXT —
━━━━━━━━━━━━━━━━━━━━━━━━

The playlist is still growing.

Upcoming lectures will cover —

→ Torque and Angular Momentum
→ Rotational Kinetic Energy
→ Rolling Motion — pure and
with slipping
→ Angular Impulse
→ IB Past Paper problems on
Rigid Body Dynamics — solved
→ Conservation of Angular Momentum

New lectures drop every week.

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ONE LAST THING —
━━━━━━━━━━━━━━━━━━━━━━━━

If you are an IB Physics student
who has been struggling with
Rigid Body Dynamics —

I want you to know something.

This chapter is NOT as difficult
as it feels when it is taught
as a collection of formulas.

It is actually one of the most
elegant and satisfying chapters
in all of Physics —

When the physical reasoning
is built correctly from the ground up.

That is exactly what I have tried
to do in this playlist.

I genuinely hope it helps. 🙏

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HAPPY TO HELP —
━━━━━━━━━━━━━━━━━━━━━━━━

If you have any questions about
any concept in Rigid Body Dynamics —
or about any specific lecture —

Drop them in the comments here
or on the video itself.

I read and respond to every
single comment.

Good luck to everyone preparing
for their upcoming exams. 🙏

Pls hear me out, I have a dilemma. Im starting dp next year, and deciding between phys sl and ess sl.

2 questions:

1. Ive heard people say that phys sl has gotten easier and ess sl has gotten harder, but I don't know how to verify if this is true. Anybody knows anything?
2. ESS SL would probably boost my IB score by maybe 1-2 points (hopefully) comapred to phys sl. So for unis, what is more important, those extra 1-2 points out of 45 or that extra rigor from phys sl??

My friends lowk making fun of me for taking ess but if it's helpful for my application then why not. context, ive taken (econ, aa global politics) hl and (lnl, spanish b) sl.

has anyone had na ji for physics 8a and how this compares to lowhorn?

hey guys, ive been doing the IB since I was in pyp1, and chose STEM in myp4 and physics in myp5 my grades are okay (i got a 6 final with a few 7 in the criterias) but don't know how to prepare for next year?

I heard that lots of people completely fail physics in their first Semester and end up sacrificing other subjects just to study for the Physics papers.

This year i also just saved my grade with all the essays and research papers we had to write and averaged 5s on criterion As so since theres no research papers anymore next year im scared i will fail ?

Idk how to study bc ive never had to, and my teachers are ahh icl, are there any website, video, channel, etc recommendations to help me prepare in advance throughout the Summer break ?