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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A light inextensible thread is wound round a solid cylindrical reel of mass kg and radius 10 cm. The end of the string is held fixed and the reel is allowed to fall so that the thread unwinds. If the axis of the reel remains horizontal, the tension in the thread will be N. ( m/s²)

Answer: 5

Solution

For a falling reel unwinding a thread held at a fixed point,

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Question ID VK-158848