Question

The mass of the rock is 1220 kg. It had 400 J of potential energy when it rolled down the hill. Calculate the height.

Answer 1

height : 0.32786 m

Explanation:

Formula:

$h\text{ = }\frac{PE}{m}$

PE : Potential energy = 400 J

m : mass = 1220 kg

$h\text{ = }\frac{\text{400}}{1220}\text{ }\approx\text{ 0.32786 m}$