A sufficiently long platform of mass m rests on frictionless ground. A cylinder of mass m and radiusR = 3 (m) rotating around its center of mass at an angular velocity w = 30 (rad/s) is slowly dropped ontothe platform at t = 0. The coefficient of friction between the cylinder and the platform is u = 0.3 . After howmany seconds does the cylinder start to roll without slipping?Ikm =;mR², g = 10 (m/s²)mтA) 0.5В) 2.5С) 5D) 7.5E) 12.5

Here a cylinder is made to roll without slipping on a long platform. The coefficient of friction…

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