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A lift of mass 920 kg has a capacity of ...

A lift of mass 920 kg has a capacity of 10 persons. If average mass of person is 68 kg. Friction force between lift and lift shaft is 6000 N. The minimum power of motor required to move the lift upward with constant velocity 3 m/s is [`g = 10 m/s^2` ]

A

66000W

B

63248W

C

`48000W`

D

`56320`

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