A body of mass 4 Kg fall freely from a height of 50 m. Find its initial potential energy.

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Solution

Step1:
Given,
mass = $4$ Kg
height = $50$ m
g = $10$ m/s ² (taken)
Step 2: Calculating potential energy
We know that,
Potential Energy = $m \times g \times h$ , where $m$ is the mass, $h$ is the height and $g$ is the acceleration due to gravity.
$= 4 \times 10 \times 50$
$= 2000 J$
The initial potential energy of the body is $2000 J$ .

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