Physics
Find the gravitational potential energy of 1 kg mass kept at a height of 5m above the ground. Calculate its kinetic energy when it falls and hits the ground. Take g = 10ms-2.
Work, Energy & Power
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Answer
Given,
Mass, m = 1 kg
Height, h = 5 m
Gravitational potential energy = mgh
= 1 × 10 × 5
= 50 J
When the mass hits the ground, its entire Potential energy is converted to Kinetic energy.
Hence, Kinetic energy of mass on hitting the ground = 50 J.
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