Question

A 10 kg rock is at the top of 20 meter tall hill what is the energy does it have

Answer 1

Answer:

Energy, E = 1960 J

Explanation:

We have,

Mass of the rock is 10 kg

It is at the top of 20 m tall hill

The rock will have a potential energy. The energy possessed by the rock is called gravitational potential energy. It is given by :

E = mgh

g is acceleration due to gravity

$E=10\times 9.8\times 20\\\\E=1960\ J$

So, the energy possessed by the rock is 1960 J.