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A 128.0-N carton is pulled up a frictionless baggage ramp inclined at above the horizontal by a rope exerting a 72.0-N pull parallel to the ramp’s surface. If the carton travels 5.20 m along the surface of the ramp, calculate the work done on it by (a) the rope, (b) gravity, and (c) the normal force of the ramp. (d) What is the net work done on the carton? (e) Suppose that the rope is angled at above the horizontal, instead of being parallel to the ramp’s surface. How much work does the rope do on the carton in this case?
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