Question: A 15-kg block is dragged over a rough, horizontal surface by a constant force of 70 N acting at an angle of 20 above the

  • A 15-kg block is dragged over a rough, horizontal surface by a constant force of 70 N acting at an angle of 20˚ above the horizontal. The block is displaced 5 m, and the coefficient of kinetic friction is 0.3. Find the work done by (a) the 70-N force, (b) the force of friction, (c) the normal force, and (d) the force of gravity. (e) What is the net work done on the block

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