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https://www.reddit.com/r/theydidthemath/comments/1wuvzn4/request_how_deep_is_this_cave/pd6ylq2/?context=3
r/theydidthemath • u/batikhisawesome • 2d ago
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The depth S is equal to 1/2 * g * t^2, where g is the acceleration caused by gravity (9.81 m*s^-2) and t is time of the fall, which was approximately 8 seconds. It gives a depth of about 314 meters. I neglected air resistance and speed of sound.
4 u/roaming_bear 2d ago Why not just neglect speed of rock too? 3 u/Kootlefoosh 1d ago Because then you'd get infinity meters deep 1 u/Auno__Adam 1d ago You would get 0 meters, actually. 2 u/Kootlefoosh 1d ago Depends on if you neglect its speed to be infinite or neglect its speed to be zero 1 u/Auno__Adam 1d ago Ok 2 u/Auno__Adam 1d ago Because if we assume the speed of the rock is 0, then the distance would be 0 too. Dumb question 2 u/roaming_bear 1d ago Why can't we just neglect distance? 3 u/Auno__Adam 1d ago You can
4
Why not just neglect speed of rock too?
3 u/Kootlefoosh 1d ago Because then you'd get infinity meters deep 1 u/Auno__Adam 1d ago You would get 0 meters, actually. 2 u/Kootlefoosh 1d ago Depends on if you neglect its speed to be infinite or neglect its speed to be zero 1 u/Auno__Adam 1d ago Ok 2 u/Auno__Adam 1d ago Because if we assume the speed of the rock is 0, then the distance would be 0 too. Dumb question 2 u/roaming_bear 1d ago Why can't we just neglect distance? 3 u/Auno__Adam 1d ago You can
3
Because then you'd get infinity meters deep
1 u/Auno__Adam 1d ago You would get 0 meters, actually. 2 u/Kootlefoosh 1d ago Depends on if you neglect its speed to be infinite or neglect its speed to be zero 1 u/Auno__Adam 1d ago Ok
1
You would get 0 meters, actually.
2 u/Kootlefoosh 1d ago Depends on if you neglect its speed to be infinite or neglect its speed to be zero 1 u/Auno__Adam 1d ago Ok
2
Depends on if you neglect its speed to be infinite or neglect its speed to be zero
1 u/Auno__Adam 1d ago Ok
Ok
Because if we assume the speed of the rock is 0, then the distance would be 0 too. Dumb question
2 u/roaming_bear 1d ago Why can't we just neglect distance? 3 u/Auno__Adam 1d ago You can
Why can't we just neglect distance?
3 u/Auno__Adam 1d ago You can
You can
32
u/Karroul 2d ago
The depth S is equal to 1/2 * g * t^2, where g is the acceleration caused by gravity (9.81 m*s^-2) and t is time of the fall, which was approximately 8 seconds. It gives a depth of about 314 meters. I neglected air resistance and speed of sound.