A horizontal square platform of mass m and side a is free to rotate about a vertical axis passing through its centre O The

Question

A horizontal square platform of mass m and side a is free to rotate about a vertical axis passing through its centre O The platform is stationary and a person of the same mass m as the platform is standing on it at point A The person now starts walking along the edge from A to B see figure The speed v of the person with respect to the platform is constant Taking v 5 m s and a 1m A B A B Angular velocity of platform when the person is at A is 6 rad s Angular velocity of platform increases first and then decreases again as it reaches B Angular velocity of platform decreases first and then increases again as it reaches B Angular velocity of platform remains constant as the person goes from A to B C D The body is rotated in the vertical plane by means of a thread of

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