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(a) How much work is done by applied force F = 80 N (parallel to the incline) if a 2.5-kg stone moves with constant speed

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(a) How much work is done by applied force F = 80 N (parallel to the incline) if a 2.5-kg stone moves with constant speed up a 370 incline to the final height h = 12 m above the starting point at the ground level? (b) How much work is done by force of gravity? (c) What is the M magnitude of total work done by all forces? (d) Work done by force of friction

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