A physics professor is pushed up a ramp inclined upward at an angle 33.0^\circ above the horizontal as he sits in his desk chair that slides on frictionless rollers. The combined mass of the professor and chair is 82.0 kg. He is pushed a distance 2.85 m along the incline by a group of students who together exert a constant horizontal force of 593 N. The professor's speed at the bottom of the ramp is 2.30 m/s.
Use the work-energy theorem to find his speed at the top of the ramp.