FIGURE 7-4 A constant force of 100 N is applied to a mass of 40.0 kg as shown in Figure 7-4. The force causes a displacement of 20.0 m to this mass along the + x-axis. Neglect friction.
-What is the work done by the component of the force in Figure 7-4 along the + y-axis?
A) 1680 J
B) 1530 J
C) 1520 J
D) 0 J
E) 2000 J

Question

FIGURE 7-4  A constant force of 100 N is applied to a mass of 40.0 kg as shown in Figure 7-4. The force causes a displacement of 20.0 m to this mass along the + x-axis. Neglect friction.
-What is the work done by the component of the force in Figure 7-4 along the + y-axis?
A) 1680 J 
B) 1530 J 
C) 1520 J 
D) 0 J 
E) 2000 J

Quizplus · Accepted Answer

The applied force is only in the +x direction and there is no displacement in the +y direction, so the work done by the component of the force in the +y direction is zero.

FIGURE 7-4 a Constant Force of 100 N Is