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In the figure m(A) = m(B) = m(C) = 60 kg...

In the figure `m_(A) = m_(B) = m_(C) = 60 kg`. The coefficient of friction between `C` and ground is `0.5 B` and ground is `0.3, A` and `B` is `0.4. C` is pulling the string with the maximum possible force without moving. Then the tension in the string connected to `A` will be

A

`120N`

B

`60N`

C

`100N`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D
Maximum frictional force between `C` and ground `=300Nt`
Max. frictional force between `B` and ground `=360Nt`
So man is unable to pull `B` Hence `T=0`
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