A ball of mass 3 kg is kept at a height of 4m above the ground. Find the potential energy
Question
A ball of mass 3 kg is kept at a height of 4m above the ground. Find the potential energy
Solution
The potential energy (PE) of an object can be found using the formula:
PE = mgh
where: m = mass of the object (in kg) g = acceleration due to gravity (approximated as 9.8 m/s² on Earth) h = height above the ground (in m)
Given in the problem: m = 3 kg g = 9.8 m/s² h = 4 m
Substitute these values into the formula:
PE = 3 kg * 9.8 m/s² * 4 m = 117.6 Joules
So, the potential energy of the ball is 117.6 Joules.
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