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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A rubber ball is dropped from a height of 5 m on a planet where the acceleration due to gravity is not known. On bouncing, it rises to 1.8 m. The ball loses its velocity on bouncing by a factor of

Answer: (B)

Solution

Coefficient of restitution, e = √(h₂/h₁) = √(1.8/5) = √0.36 = 0.6 = 3/5, i.e. the

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Question ID VK-154051