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18 March, 17:01

What is the net work done on the 20kg block while it moves the 4 meters?

A. 240J

B. - 200J

C. 120J

D. 0J

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Answers (1)
  1. 18 March, 17:15
    0
    The answer to your question is 784.8 J. None of your answer, did you forget some information?

    Explanation:

    Data

    mass = 20 kg

    distance = 4 m

    work = ?

    Formula

    Work = force x distance

    Force = mass x gravity

    Process

    1. - Calculate the weight of the block

    Weight = 20 x 9.81

    Weight = 196.2 N

    2. - Calculate the work done

    Work = 196.2 x 4

    Work = 784.8 J
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