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The block of mass m is kept on plank of mass M. The block is given velocity `V_(0)` as shown. The coefficient of friction between the block of mass m and plank of mass M is `mu` and its value is such that block becomes stationary with respect to plank before it reaches the other end. Then:A. The work done b friction on the block is negativeB. the work done by friction on the plank is positiveC. the net work done by friction is negativeD. net work done by the friction is zero. |
| Answer» Correct Answer - A::B::C | |