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A solid sphere of mass m rolls without s...

A solid sphere of mass m rolls without slipping on an inlined plane of inclination 0. what shoul be the minimum coefficient of static feiction to support pure rolling?

A

`(2)/(3) tan theta`

B

`(2)/(5) tan theta`

C

`(2)/(7) tan theta`

D

`(3)/(7) tan theta`

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