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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A wheel of moment of inertia is rotating about an axis passing through its centre and perpendicular to its plane at a speed of . Due to friction, it comes to rest in minutes. The angular momentum of the wheel three minutes before it stops is .

Answer: 108

Solution

Uniform deceleration from to rest in : . At

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Question ID VK-159221