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A disc of mass m and radius R is release...

A disc of mass m and radius R is released from rest.If it takes `t_1` sec to slide down the smooth plane and `t_2` sec is the time taken to roll down the rough plane, such that `t_2/t_1 = sqrt3/x`. Find x

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2021-PHYSICS SECTION B
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