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a block moves up a 30 degree incline under the action of certain forces, three of which are shown in figure. F1 is a horizontal and of magnitude 40 N, F2 is normal to the plane and of magnitude 20 N, F3 is paralle to the plane and of magnitude 30 N. Determine the the work done y each force as the block (and point of application of each force ) moves 80 cm of the incline.
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