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Given in figure are two blocks A and B o...

Given in figure are two blocks A and B of weight 20N and 100N, respectively. These are being pressed against a wall by a force F as shown. If the coefficient of friction between the blocks is 0.1 and between block B and the wall is 0.15, the frictional force applied by the wall on block B is:

A

`100N`

B

`80N`

C

`120N`

D

`150N`

Text Solution

Verified by Experts

The correct Answer is:
c
As is clear from for the system to be in bertical equilibrium
`F_(s) = 100 + 20 =120 N`
.
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