Question

A 30 kg child climbs 15 m up a tree. What is the child's potential energy?

Answer 1

Given

Mass of the child, m=30 kg

Distance travelled, h=15 m

To find

The child's potential energy

Explanation

We know the potential energy is

$U=mgh$

Thus,

$\begin{gathered} U=30\times15\times9.8 \\ \Rightarrow U=4410\text{ J} \end{gathered}$

Conclusion

The potential energy is 4410 J.