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A string is wrapped around a cylinder of...

A string is wrapped around a cylinder of mass `M` and radius `R`. The string is pulled vertically upwards to prevent the centre of mass from falling as the cylinder unwinds the string. The tension in the string is

A

`2Mg//3`

B

`Mg//2`

C

`Mg//3`

D

`Mg//6`

Text Solution

Verified by Experts

The correct Answer is:
C
Equation of motion
`T=Mg-Ma=Mg-2/3Mg=1/3Mg`
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