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A disk B as shown weighs 30N, is attached to the end of the chord. The other end of the chord is attached to a ball and socket joint located at the center of a platform. The platform is rotated rapidly and the disk is placed on it and released from rest as shown. The maximum tension that the chord can sustain is 100N and the coefficient of kinetic friction between the disk and the platform is 0.15. B motion Rai r=1m V
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