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A physics professor is pushed up a ramp inclined up-ward at 30.0° above the horizontal as she sits in her desk chair, which slides on frictionless rollers. The combined mass of the professor and chair is 85.0 kg. She is pushed 2.50 m along the incline by a group of students who together exert a constant horizontal force of 600 N. The professor’s speed at the bottom of the ramp is 2.00 m/s. Use the work-energy theorem to find her speed at the top of the ramp.
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University Physics with Modern Physics (14th Edition)
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