| Given in the figure are two blocks A and B of weight 20 N and 100N respectively. There 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: [JEE MAIN 2015] |
 |
A) 120 N
B) 150 N
C) 100 N
D) 80 N: D
Correct Answer: A
Solution :
| [a] |
 |
| F = 120 |
| F = 120 |
| If the system is not acceleration: D |
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