Maximum acceleration of the train in which a 50 kg box lying on its floor will remain Stationery
(Given : Co–efficient of static friction between the box and the train’s floor is 0.3 and g = 10 ms–2)
5.0 ms–2
3.0 ms–2
1.5 ms–2
15 ms–2
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Given in the figure are two blocks A and B of weight 20 N and 100 N, 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