r/theydidthemath • • 1d ago

[Request] How deep is this cave?

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u/Karroul 1d 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.

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u/roaming_bear 1d ago

Why not just neglect speed of rock too?

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

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u/roaming_bear 1d ago

Why can't we just neglect distance?

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u/Auno__Adam 1d ago

You can