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

A 3.0 kg metal ball is held 3.5m above the ground. Find the potential gravitational and kinetic energy of the ball after it is let go and has fallen for 0.4s

2. Relevant equations

EK= 1/2mv^2

EP=mgh

3. The attempt at a solution

Okay I know how to find both the kinetic and potential energy, but how does the time effect it? Is there a certain equation I have to sub it in other than the ones given. Please help :)

Potential= EP=mgh

Ep=(3.0Kg)(9.8m/s^2)(3.5m)

EP= 102.9 J

Kinetic = EK=1/2mv^2

EK=1/2(3.0kg)(9.8m/s^2)

EK=14.7 J

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# Find the potential gravitational and kinetic energy of a ball after 0.4 seconds

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