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

A stone weighing 0.2 kilograms is thrown vertically upwards with a velocity of 19.6 meters per second. Neglecting the friction of the air, calculate the kinetic and potential energy it possesses at the end of 1 second and 2 seconds respectively.

2. Relevant equations

3. The attempt at a solution

I found total kinetic energy here:

Total Kinetic Energy=1/2 times mass times velocity squared

KE = (1/2)(0.2)(19.2) ^2 = 36.864

- just not sure how to find it after "1 and 2 seconds respectively."

I know potential energy =

Egrav=mgh

but i dont have a height value so even rearranging doesn't work:

And rearranging to solve for h=Egrav/mg = ???

How do you solve for kinetic and potential energy when you have the added component of time and missing components of height?

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# Homework Help: Potential and Kinetic Energy with Time Thrown In

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