381. assignment (inclined plane)
A physics professor is pushed up a ramp inclined upward at an angle 35.0^\circ above the horizontal as he sits it his desk chair that slides on frictionless rollers. The combined mass of the professor and chair is 84.0 kg . He is pushed a distance 2.30m along the incline by a group of students who together exert a constant horizontal force of 596 N. The professor’s speed at the bottom of the ramp is 2.25mis . Use the work-energy theorem to find his speed at the top of the ramp.
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