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Most Important Selected Qs for JEE AdvancedPhysicsLaws of Motion

An old record player of 10 cm radius turns at 10 rad / s while mounted on a 30^ incline as shown in the figure. A particle of mass m can be placed any where on the rotating record. If the least possible coefficient of friction that must exist for no slipping to occur is , find 2 3 .

Correct answer

6

Step-by-step solution

aligned & f mg + mrw ^2 & mg mg + mrw ^2 & or + w ^2 r g aligned

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