Question

Relative to the ground below, how many joules of Potential Energy does a 1000-kg boulder have at the top of a 5-m ledge?

Answer 1

Data given:

mass=1000kg

h=5m

Data needed:

Potential Energy=Ep

Formula needed:

Ep=mgh

Solution:

Ep=1000kg×9.81m/s²×5m

Ep=49050J