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13 September, 04:18

You are carrying a 7.0-kg bag of groceries as you walk at constant velocity along the sidewalk. You walk a distance of 82 meters and hold the bag at a height of 1.5 m above the sidewalk. How much work against gravity do you do on the bag? Explain.

0 J

100 J

+5
Answers (1)
  1. 13 September, 07:38
    0
    the work againts gravity is zero (0)

    Explanation:

    This is because the work is always done, by a force that acts parallel in the direction of the displacement of the body.

    In this case, the gravity and the weight of the bag is not acting in the direction of the displacement, therefore there is no work done.
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