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(II) Let be a block of 1,5 kg moving at constant velocity on a surface for which =0,25 . It is pulled by a force
(II) Let be a block of 1,5 kg moving at constant velocity on a surface for which =0,25 . It is pulled by a force F directed at an angle =37 upwards with respect to the horizontal and its displacement is 2m. Find the work done on the block by (a) force F; (b) the frictional force; (c) the force of gravity.
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