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Three blocks of A, B and C of equal mass m are placed one over the other on a smooth horizontal ground as shown in figure. Cofficient of friction between any two blocks of A,B and C is 1/2. The maximum value of mass of block D so that the blocks A,B and C move without slipping over each other is- A. 6 mB. 5 mC. 3 mD. 4 m |
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Answer» Correct Answer - 3 Block B & C move together but For A `malemu(mg)` So `a_(max)=mu_(s)g` So `a_(max)=(Mg)/(M+3m)` M=3m |
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