Question

The potential energy of a hammer of mass $10\mathrm{kg}$, lifted to the height of $10\mathrm{m}$ is

Answer 1

Step 1: Given

Mass, $\mathrm{m}=10\mathrm{kg}$

Height, $\mathrm{h}=10\mathrm{m}$

Step 2: Formula used

Potential Energy, $\mathrm{PE}=\mathrm{mgh}$

Where m is mass, g is the acceleration due to gravity, and h is the height.

Step 3: Calculation

By substituting the values in the above formula, we get

$$\begin{gathered} \mathrm{PE}=10\mathrm{kg}\times 9.8{\mathrm{ms}}^{-2}\times 10\mathrm{m} \\ \mathrm{PE}=980\mathrm{J} \end{gathered}$$

Therefore, the potential energy of a hammer of $10\mathrm{kg}$ at $10\mathrm{m}$ height is $980\mathrm{J}$.