Question: A 90-lb package is at rest on an incline when a constant force P is applied to it. The coefficient of kinetic friction between the

A 90-lb package is at rest on an incline when a constant force P is applied to it. The coefficient of kinetic friction between the package and the incline is 0.35. Knowing that the speed of the package is 2 ft/s after it has moved 3 ft up the incline, determine the magnitude of the force P.

30 P 20

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