Jim exerts a force of 500 N against a 100-kg desk that does not move. Virgil exerts a force of 400 N against a 60-kg desk that moves 2 m in the direction of the push. Mik exerts a force of 200 N against a 50-kg desk that moves 5 m in the direction of the push. The most work is done by
A) Jim.
B) Virgil.
C) Mik.
D) Virgil and Mik, who do equal amounts of work.

Question

Quizplus · Accepted Answer

The amount of work done is determined by the formula W = Fd (work equals force times distance).

Jim exerts a force of 500 N, but since the desk does not move, no work is done (d = 0).

Virgil exerts a force of 400 N over a distance of 2 m, so the work done is W = (400 N) x (2 m) = 800 J.

Mik exerts a force of 200 N over a distance of 5 m, so the work done is W = (200 N) x (5 m) = 1000 J.

Therefore, Mik does the most work.

Jim Exerts a Force of 500 N Against a 100-Kg