Question

A waiter is carrying a tray above his head and walking at a constant velocity. If he applies a force of 5.0 newtons on the tray and covers a distance of 10.0 meters, how much is the work being done?
A. 0 joules
B. 2 joules
C. -2 joules
D. 50 joules
E. -50 joules

Answer 1

Answer:

(A) 0 Joules

Explanation:

The force applied exists in the vertical direction only. There is no displacement in the vertical direction. (Work)=(Force in y direction) x (Displacement in y direction) = (Force) x 0 = 0 J