1.

VEMATIA sphere is rollihorizontal plane surfais a point of contarwhere is rolling without slipping on a fixed1 plane surface. In the Fig. 2(CF).32, Ant of contact, B is the centre of the sphereand C is its topmost point. ThenFIGURE 2(CF).32

Answer»

As it is rolling without slipping .Hence the velocity of the point touching the ground. ie A should be 0.So Velocity of centre of mass= (Radius of sphere)×(angular velocity of sphere).



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