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
[tex]E=10\times 9.8\times 20\\\\E=1960\ J[/tex]
So, the energy possessed by the rock is 1960 J.
