An escalator in a shopping center is designed to move 50 people, 75 kg each, at a constant speed of 0.6 m/s at 450 slope. determine: (a) the minimum power input needed to drive this escalator, and (b) what would your answer be if the escalator velocity were to be doubled?

Power required to drive the escalator shall be equal to the rate at which the energies of the persons is increased.

As we infer from the above equation If the velocity of the escalator is doubled then the Power required will also be doubled and become 31.215kW

answer:

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explanation:

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