If an escalator raises 20 people weighing 80 kg per minute from the first to the second floor, which is 40 m high, deter

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answerhappygod
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If an escalator raises 20 people weighing 80 kg per minute from the first to the second floor, which is 40 m high, deter

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If an escalator raises 20 people weighing 80 kg per minute from the first to the second floor, which is 40 m high, determine the minimum power of the stair motor.
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