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Work done by forces and work-energy theorem

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A rescue helicopter lifts a 79 kg person straight up by means of a cable. The person has an upward acceleration of 0.70 m/s^2 and is lifted from rest through a distance of 11 m. a) What is the tension in the cable? How much work is done by b) the tension in the cable and c) the person's weight d) using the work and energy theorem, what is the final speed of the person?

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The solution is comprised of detailed explanation of work done by forces and work-energy theorem. Supplemented with free body diagram and step-by-step text, the solution provides the student a clear prospective of classical physics.

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