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A block of mass m is placed on a plank of mass M. The system of block and plank is placed on a smooth horizontal surface. If both block and plank move together under a constant force F then the frictional force between the block(m) and the plank(M) is: _____________(A)FM/(M+m)(B)Fm/(m+M)(C)F(M+m)/m(D)F(M+2m)/(M+m) |
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Answer» A block of mass m is placed on a plank of mass M. The system of block and plank is placed on a smooth horizontal surface. If both block and plank move together under a constant force F then the frictional force between the block(m) and the plank(M) is: _____________ (A)FM/(M+m) (B)Fm/(m+M) (C)F(M+m)/m (D)F(M+2m)/(M+m) |
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