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A wheel of radius R has an axle of radiu...

A wheel of radius `R` has an axle of radius `R//5`. A force `F` is applied tangentially to the wheel. To keep the system in a state of "rotational" rest, a force `F'` is applied tangentially to the axle. The value of `F'` is

A

`F`

B

`3F`

C

`5F`

D

`7F`

Text Solution

Verified by Experts

The correct Answer is:
C
`F'xxR/5xxFR or F'=5F`
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