A long horizontal rod has a bead which can slide along its length and initially placed at a distance L from one end of A of the

Question

A long horizontal rod has a bead which can slide along its length and initially placed at a distance L from one end of A of the rod The rod is set in angular motion about A with constant angular acceleration a If the coefficient of friction between the rod and the bead is u and gravity is neglected then the time after which the bead starts slipping is A B D infinitesimal

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