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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A uniform rod of length and mass lies on a smooth horizontal surface. Two point masses and , moving in the same plane with speeds and respectively, strike the rod perpendicularly at distances and from the mid-point of the rod, in opposite directions, and stick to the rod. The angular velocity of the system immediately after the collision is

Answer: (D)

Solution

Angular momentum about the centre before collision: (both contribute torque in the same rotational sense, being on opposite sides and

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Question ID VK-158521