In the figure, a crate of mass m = 79 kg is pushed at a constant speed up a frictionless ramp (? = 31°) by a horizontal force F . The positive direction of an x axis is up the ramp, and the positive direction of a y axis is perpendicular to the ramp. (a) What is the magnitude of F ? (b) What is the magnitude of the normal force on the crate?


Get this answer with Chegg Study