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For the arrangement as shown in the figu...

For the arrangement as shown in the figure the maximum force F, for no relative motion between blocks is

A

`12 N`

B

`8 N`

C

`20 N`

D

`24 N`

Text Solution

Verified by Experts

The correct Answer is:
D
To start motion `F gt 8 M`

Acceleration `=(F-8)/(8)`

`(F)/(2)-f_(r )= 3((F-8)/(8)) rArr (F)/(8)+3 = f_(r )`
`(F_(max))/(8)+3 =f_(Lm) = 6N rArr F_(max) = 24Nx`
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