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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A homogeneous disc of mass 2 kg and radius 15 cm is rotating about its axis (which is fixed) with an angular velocity of 4 radian/s. The linear momentum of the disc is

Answer: (D)

Solution

With the axis fixed through the disc's own centre, the centre of mass does not move, so

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Question ID VK-159054