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A horizontal plank of mass m is lying on a horizontal surface. A sphere of mass m and radius r is spinned to an angular frequency Wo and gently placed on the plank with its axis horizontal as shown in attachment. If coefficient o friction b/w the plank an sphere is mu the distance moved by the plank till the sphere starts pure rolling on the plank. The plank is long enough.

A horizontal plank of mass m is lying on a horizontal surface. A sphere of mass m and radius r is spinned to an angular frequency Wo and gently placed on the plank with its axis horizontal as shown in attachment. If coefficient o friction b/w the plank an sphere is mu the distance moved by the plank till the sphere starts pure rolling on the plank. The plank is long enough.

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Grade:12th pass

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