what is the power output needed from a motor to lift in the absence of friction a mass of 1.5 ×10⁴ kg 25 m in 6.0 s at constant speed​

Question

what is the power output needed from a motor to lift in the absence of friction a mass of 1.5 ×10⁴ kg 25 m in 6.0 s at constant speed​

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Thu Giang 4 years 2021-09-04T07:19:16+00:00 1 Answers 3 views 0

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  1. bonexptip
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    2021-09-04T07:20:17+00:00
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    Answer:

    the power output needed is  61.25 × 10⁴

    Explanation:

    The computation of the power output needed is shown below;

    Given that

    m =  1.5 ×10⁴ kg

    v = 25m  ÷ 6.0 s

    And g = 9.8 m/sec^2

    Now based on the above information

    p = f × v

    = mg × v

    = 1.5 ×10⁴ × 9.8 × 25 ÷ 6

    = 61.25 × 10⁴

    Hence, the power output needed is  61.25 × 10⁴

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