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A sphere can roll on a surface inclined ...

A sphere can roll on a surface inclined at an angle `theta` if the frictioni coefficient is more than `2/7 g tantheta`. Suppose the friction coefficient ils `1/7gtantheta`.If a sphre is released from reest on the incline.

A

it will stay at rest

B

it will make pure translational motion

C

it will translate and rotate about the centre

D

the angular momentum of he sphere about its centre will remains constant

Text Solution

Verified by Experts

The correct Answer is:
C
`mu lt mu_(min)"but" mu ne0`. Therefore, sphere will roll with forward slipping.
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