Question

Jill is out for a walk. How much gravitational potential energy does she gain when she heads to the top of a hill 20 m tall? Jill is 55 kg.

Answer 1

`10780 J`

Explanation:

`PE =mgh`

Since `F=mg` in this case

`PE= mgh`

`PE= 55kg*(9.8m/s^2)*1.5 m= 10780 J`