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In the system shown in Fig the friction ...

In the system shown in Fig the friction coefficient between ground and bigger block is `mu` There is no friction between both the block .The string connecting both the block is light all three pulley are light and frictionless Then the minimum limiting value of `mu` so that the system remain in equilibrium , is

A

`(1)/(2)`

B

`(1)/(3)`

C

`(2)/(3)`

D

`(3)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
C


In equilibrium
`T=mg`
`N=3mg`
and `f=2T=2mg`
in limiting case `fltf_(max)`.
`implies2mglemuN`
`implies2mgle3mumg`
`impliesmugt(2)/(3)`
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