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In the pulley arrangement shown in Fig t...

In the pulley arrangement shown in Fig the pulley `p_(2)` is movable .Assuming the coefficient of friction between `m` and surface to be `muu` the minimum value of `M` for which `m` is at rest is

A

`M=(mum)/(2)`

B

`m=(muM)/(2)`

C

`M=(m)/(2mu)`

D

`m=(M)/(2mu)`

Text Solution

Verified by Experts

The correct Answer is:
A
`f+2T`
and `T=Mg`
If `m` be at rest friction will be static
`flemuN`
`2Mglemumg` implies `M=(mug)/(2)` .
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