Question

How much potential energy does a 75 kg skater have at 5 m

Answer 1

Given:

Mass of skater, m = 75 kg

Height, h = 5 meters

Let's find the potential energy of the skater.

To find the potential energy, since the skater is in motion, apply the formula below:

`PE=m\ast g\ast h`

Where:

m is the mass in kg = 75 kg

g is acceleration due to gravity = 9.8 m/s^2

h is the height in meters = 5 m

Hence, to find the potentila energy, (PE), we have:

`\begin{gathered} PE=75\ast9.8\ast5 \\ \\ PE=3675\text{ J} \end{gathered}`

Therefore, the potential energy of the skater is 3675 Joules.

ANSWER:

3675 J