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Two blocks are connected by a string and...

Two blocks are connected by a string and pulled by a force `F = 50 N`. If the coefficient of friction between the blocks and the ground is 0.2, friction force between the block B and the ground is :

A

`20 N`

B

`30 N`

C

`40 N`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D
As the limiting friction between block A and ground, `f_(2) = 0.2 xx 300 = 60 N`, is more than the applied force `F = 50 N`, so friction is sufficient to balance the applied force and hence `T = 0`.
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