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Question

A brick stone of mass 5 kg is at a height above the ground. If the potential energy of the stone is 100 J. Find the height of the stone with respect to the ground (in metre).
(Take g=10 ms2)
  1. 2

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Solution

The correct option is A 2
Given,
Mass of the stone, m=5 kg
Potential energy =100 J
Acceleration due to gravity, g=10 ms2
Height, h=?

We know,
Potential energy=mgh
100=5×10×h
100=50×h

h=10050=2 m

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