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physicsgurl12
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Homework Statement
An object is dropped from rest into a pit and accelerates due to gravity at roughly 10m/s^2. It hits the ground in 5 seconds. A rock is then dropped from rest into a second pit and hits the ground in ten seconds.How much deeper is the second pit. no air resistance.
Homework Equations
not used
The Attempt at a Solution
I am pretty sure the answer is 4 times.
but I am not 100%. is it sort of like braking from one velocity to stop then a second(half as much) to stop and finding the distance it takes to stop.because that's four times as long.