Question

What is the potential energy of a 10kg child sleeping in her crib 1 meter above the ground?

Answer 1

Potential energy of the child =98 J

Explanation:

mass of child= m= 10 kg

height= h= 1 m

acceleration due to gravity= g= 9.8 m/s²

Potential energy= PE= mgh

PE= 10 (9.8)(1)

PE= 98 J

Thus the potential energy of the child= 98 J