FIGURE 7-5
-An object is under the influence of a force as represented by the force vs. position graph in Figure 7-5. What is the work done as the object moves from 4 m to 6 m?
A) 20 J
B) 30 J
C) 0 J
D) 40 J
E) 70 J

Question

FIGURE 7-5 
-An object is under the influence of a force as represented by the force vs. position graph in Figure 7-5. What is the work done as the object moves from 4 m to 6 m?
A) 20 J 
B) 30 J 
C) 0 J 
D) 40 J 
E) 70 J

Quizplus · Accepted Answer

The work done by a force is the area under the force vs. position graph. If the graph shows a constant force of 10 N from 4 m to 6 m, the area (work done) is a rectangle with a height of 10 N and a width of 2 m, giving 10 N * 2 m = 20 J.

FIGURE 7-5 -An Object Is Under the Influence of a Force as a Force