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Q. How to solve A block is pushed across a rough horizontal surface from point A to B by a force (magnitude p=5.4 N). The magnitude of the force of friction acting on the block between A and is 1.2 N and points A and B are 0.5 m apart. If the kinectic energies of the block at A and B are 4.0 J and 5.6 J, respectively, how much work is done on the block by the force p between A and B?

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