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Three particles A, B, C having masses m, 2m, 3m respectively are rigidly attached to a ring of mass m and radius R which rolls on a horizontal surface without slipping. At a certain instant, the velocity of the centre of a ring is v 0 as shown in the figure. The kinetic energy of the system is
Velocity of A is root2 v, velocity of B is 2v and velocity of c is root v K.E. of ring= 1/2 mv^2 +1/2 Iw^2K.E. of the particles= (1/2 × 2m × 4v^2) + (1/2 × m × v^2) + (1/2 × 3m × 2v^2)Total K.E. of system = 9mv^2
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