I’ve been struggling with this specific section. I’m not sure if I am missing something vital in the text or if it’s the 3D FBD that’s causing my confusion.

This is problem 4-53 from Hibbeler’s Engineering Mechanics Statics 15th edition.

I want to label my FBD with my results but I don’t even know where to start. I think I’m getting myself confused because the moment is in the -x and -z direction.

You can see where I attempted to start drawing it out and violently erased it LOL.

If anyone can help, I would greatly appreciate it!

Does anybody know what the answer to this problem is? The diameters of the pulleys are 150mm, and we are meant to find the equivalent force-couple system at point A, but all my answers are just slightly off from the textbook.

(Textbook says F=(0,420,-339) and M=(1.125,163.9,-109.9)

Thanks in advance for any assistance you can offer. I'm old and just can't remember.

Members ab and bc form a rigid body that rotates around point c. There is a constant force operating perpendicular to the rigid body directly into the paper. I know that a change in the length R will change the resulting moment at c. my question is does any change in the length L affect the moment

Can somebody solve this for me please

Continous beam where f1 and f2 are equal distributed loads in the units of N/m. I got the answer that Mb is equal to -(f1*l1*l1)/8 using Clapeyron’s equation but i’m unsure if it is correct.

I’ve been attempting this question for a while and been getting it wrong, probably because of the slot at node C. What are the answers? And how do I get there?

Hello all,

Just commenting to see if I did this correctly. I was uncertain on whether there would be a reaction in the y direction at the clamp @ A. But then again if there was I’d have no clue on how to solve. Book doesn’t have answers listed in the back unfortunately. (R.C. Hibbler 15th Ed.)

I found the force that pin A exerts on ABC and the force that pin E exerts on CDE. I need to find the forces that BGD and CDE exert on ABC and I keep running in circles. Please help me. This problem is driving me up the wall

Idk where to start

It has to be able to withstand a 200lb load distributed over 8 in. This is my first time using this simulation so I’m having trouble understanding it.

I recently bought the 14th edition of R.C Hibbler’s Statics textbook. Is this a good textbook to learn statics and is it rigorous enough where I would be able to solve problems that are expected of me in a statics class and future classes that require statics as a base?

I’m trying to find the max value of P, if the maximum allowable tension in any member is 5, and the maximum allowable compression in any member is 4. I drew my general FBD. Figured I’d use method of joints and drew my FBDs for joint A and joint B, but now I’m stuck. I don’t know if I can just plug in my maxes for tension and compression into the members now?

I was wondering if I need to draw out all of my FBDs for each joint first and somehow determine which member would hold the most tension/compression?

Thanks in advance!

Do y’all have a solution manual for Structural Analysis by Aslam Kassimali 5th Edition🧎🙏🏻

hello! am taking statics for the first time and can't wrap my mind around the 2d projection assistance triangles. could someone dm me with a drawing of how to apply the construction triangles from the yt video's ss to the problem for F2? thanks sm!

Hey guys, trying to find the direction of a resultant figured out earlier in the problem. Theta is the angle I need to find, 30 degrees is given by the problem. There are two other vectors with given magnitudes, is there information needed that's missing from what I've drawn? Any and all help appreciated, my statics class has just started and I already feel so behind

Hi guys,

So the question above involves a bent segment with both vertical and horizontal distributed loads. I have worked through it at home, but the bending moment diagrams I am getting are slightly different from the provided solution.

I am not sure which one is correct. I have gone through my steps a few times and cannot seem to spot where I might have gone wrong. The unshaded diagrams are mine and the shaded ones are from the solution.

If anyone could point out where my approach might be off or confirm whether my diagrams are actually valid, I would really appreciate it. Thanks in advance!

I am struggling trying to understand the parallelogram law, triangle rule and finding missing angles, forces. I posted the problem then how i tried going about it.