(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A rock is dropped from x(meters) height. The rock weighs 68 kg, and its force at impact with the ground is 15 kilonewtons. If the acceleration due to gravity is 9.8m/s^2, what is the distance/height the rock has fallen?

2. Relevant equations

F=m*a

15kN=15000kg*m/s^2

666.4N=68kg*9.8m/s^2

The force exerted by the rock at stationary position is 666.4 Newtons.

The rock fall distance is x meters.

3. The attempt at a solution

666.4N*x=15000N

(666.4kg*m/s^2)*x=15000kg*m/s^2

x=(15000kg*m/s^2)/(666.4kg*m/s^2)

x=22.51

This was all I could come with, but it is simply the ratio of the force. How do I find distance?

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# Calculating Distance Using Force, Mass, and Acceleration

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