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JEE Advanced 2020 Concept Recapitulation Test 4 Paper 2

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Question : 4

Total: 54

A puck on a frictionless plane is given an initial speed v0. The puck is attached to a string that wraps around a fixed vertical post:

Mechanical energy of puck remains constant in the interval of motion
Angular momentum of the puck about axis of post remains constant
No torque acts on the puck about the axis of post.
Work done by tension is zero.

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