5. (12 pts) The Shanghai Tower in China is a skyscraper measuring 632 meters high. It is home to one of the world's fastest elevators. The elevators transport visitors from the ground floor to the observation deck on the 118th floor at speeds up to 20.5 m/s. Determine the power delivered by the motor to lift 10 passengers at this (constant) speed. Assume that the combined mass of the passengers and elevator cabin is 1300 kg. 讲题 解题