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JEE Main 2004 Physics question

PhysicsOscillationsJEE Main 2004

A particle moves in a straight line with retardation proportional to its displacement. Its loss of kinetic energy for any displacement x is proportional to

Answer: (1)

Solution

Retardation means a retarding force . The loss of kinetic energy equals the work done against it: .

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Question ID VK-038296