FIGURE 7-2 Three applied forces, F 1 = 20.0 N, F 2 = 40.0 N, and F 3 = 10.0 N act on an object with a mass of 2.00 kg which can move along an inclined plane as shown in the figure. The questions refer to the instant when the object has moved 0.600 m along the surface of the inclined plane in the upward direction. Neglect friction and use g = 10.0 m/s 2 . -Refer to Figure 7-2. What is the amount of work done by the force F₃ as the object moves up the inclined plane?

Question

Quizplus · Accepted Answer

The work done by a force is calculated as the component of the force in the direction of displacement times the displacement. If F3 is perpendicular to the direction of motion (up the incline), then the work done by F3 is zero.

FIGURE 7-2 Three Applied Forces, F1 = 20

FIGURE 7-2 Three Applied Forces, F₁ = 20