An Athlete pulls a 30 kilograms crate along Lane A of the storage house. Lane A is a 15m  aisle. Using the yellow rope, he exerted an 55N force 15 degrees above the horizontal.   Q: -How much work is done by the athlete? -If the crate moves at constant velocity and the 55N force is enough to overcome friction , what is the net work done by all the forces acting on the box? Explain pls

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