A chair-lift is designed to transport 1000 skiers per hour
Chapter 13, Problem 13.46(choose chapter or problem)
A chair-lift is designed to transport 1000 skiers per hour from the base A to the summit B. The average mass of a skier is 70 kg and the average speed of the lift is 75 m/min. Determine (a) the average power required, (b) the required capacity of the motor if the mechanical efficiency is 85 percent and if a 300-percent overload is to be allowed.
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