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19 June, 22:36

A motor is used to lift a person sitting on a platform that, combined weighs 650 N. The platform is lifted 25.0 m straight up in 18.0 seconds. What power is developed by the motor in watts?

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  1. 19 June, 23:31
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    A motor is used to lift a person sitting on a platform that, combined weighs 650 N. The platform is lifted 25.0 m straight up in 18.0 seconds. What power is developed by the motor in watts?

    G:ivens: Force, F, displacement, s and time, t

    U:nkowns: Power, P

    E:quation: P = Fs/t

    S:ubstitute P = (650 x 25) / 18

    S:olve P = 902 7/9 watts
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