How fast must a person lift a barbell with a weight of 635 N to a height of 2.43 meters in order to have a power of 482 W

Question

How fast must a person lift a barbell with a weight of 635 N to a height of 2.43 meters in order to have a power of 482 W

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Mít Mít 4 years 2021-08-17T23:38:54+00:00 1 Answers 15 views 0

Answers ( )

  1. Vodka
    0
    2021-08-17T23:40:37+00:00
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    Answer:

    Time = 3.2 seconds

    Explanation:

    Given the following data;

    Weight = 635 N

    Height, h = 2.43 m

    Power = 482 Watts

    To find the time;

    Power = mgh/time

    But weight = mg = 635

    Substituting into the formula, we have;

    482 = (635 * 2.43)/time

    482 = 1543.05/time

    Time = 1543.05/482

    Time = 3.2 seconds

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