Force and Work Unit Test

1 of 121 of 12 Items
Question
A person pushes a box. He applies a force of 400 newtons, and he pushes the box for a distance of 4 meters. After he stops pushing, the box slides forward another meter. How much work was done by the person?(1 point)
Responses

1,600 joules

400 joules

2,000 joules

100 joules

1 answer

The correct answer is 1,600 joules.

Work (W) = force (F) x distance (d)

W = 400 N x 4 m

W = 1600 joules

Since the box slides forward for an additional meter without any force being applied, this distance is not considered in the calculation of work done by the person.
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