Map Sapling Learning A box is raised at constant speed by a man pulling up on a

Question

Map Sapling Learning A box is raised at constant speed by a man pulling up on a rope. During the ascent, which of the following are true (select more than one if applicable). Assume that air resistance on the box is negligible. ? ? ? ? The work performed by all conservative forces on the box is 0. The work performed by all non-conservative forces on the box is 0. The net work performed on the box is 0. The work performed by all conservative forces on the box is positive The work performed by all non-conservative forces on the box is positive. As a result of your answer to the previous question, use the work-energy theorem to determine which of the following is true O O O The change in the total energy of the box is o The change in the total energy of the box is positive. The change in the total energy of the box is negative

Explanation / Answer

1)

The net work performed on the box is 0.

- The work performed by all non-conservative forces on the box is positive.

2)The change in the total energy of the box is positive.

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