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Friction General Understanding

A solid spher...

Question

A solid sphere and a disc are released from the top of an inclined plane such that both are rolling with slipping if t_s and t_d are their respective time of journey to the bottom of plain then prove that t_s= t_d

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Solution

as slipping would take place hence friction is same for all, also mgsin(theta) is same for all hence net force and hence acc. of cm of all is same..

so to displace by same distance, all will take same time.

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