Question

7. What is the potential energy of a rock that has a mass of 100 kg that is sitting on top of a hill 300 m high?

Answer 1

Answer:

294000 J or 294 kJ

Explanation:

Potential energy is given by:

$U=mgh$

Where U is potential energy, m is mass, g is acceleration due to gravity, and h is height. Using this equation:

$U=100(9.8)(300)\\U=294000$