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Question

A body of mass 2 kg is moving with a constant velocity of 3 m/s. 
Calculate the work done on the body.
  1. 0 J
  2. 12 J
  3. 6J
  4. - 6 J


Solution

The correct option is A 0 J
Mass of the body, m = 2 kg
Velocity, v=3 m/s.
When a body is moving with constant velocity, acceleration becomes zero and the net force acting on it will be zero. Hence work done also zero.

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