PLS HELP How much power is used if an athlete lives a 100n Weight up 5m in 20 seconds

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PLS HELP How much power is used if an athlete lives a 100n Weight up 5m in 20 seconds

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Thu Thảo 4 years 2021-09-04T16:34:02+00:00 2 Answers 18 views 0

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  1. Verity
    0
    2021-09-04T16:35:25+00:00
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    Answer:

    We know that,

    Power = Work done/time taken

    P = fs/t

    P = 100 × 5/20

    P = 25Watt.

  2. lethu
    0
    2021-09-04T16:35:58+00:00
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    Answer:

    25J

    Explanation:

    power = work done ÷ time taken.

    and work done = force applied × distance covered.

    according to the question, the athlete lifts the weight of 100N upto 5m therefore;

    100N × 5m = 500N/m

    then onwards,

    the work done (500 N/m) should be divided by the time taken to calculate the power,

    500 ÷ 20s = 25J

    is your answer.

    hope this helped. 🙂

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