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20 June, 06:41

A 3.8 kg object is lifted 12 meters. approximately how much work is performed during the lifting.

A. 45.6 j

B. 588 j

C. 446.9 j

D. 372.4 j

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Answers (2)
  1. 20 June, 07:11
    0
    446.9 j
  2. 20 June, 09:44
    0
    work done=446.9 J. so option (c) is correct.

    Explanation:

    the formula for work done is given by

    W = F d

    F = force = mg where m = mass and g = acceleration due to gravity

    F = 3.8 (9.8) = 37.24 J

    so W=37.24 (12)

    W=446.9 J
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