The plot shows the force acting on an object as a function of time. Over the time the force is applied, the total impulse is:
A) 0 N∙s
B) 2 N∙s
C) 4 N∙s
D) 8 N∙s
E) cannot be determined without knowing the mass of the object

Question

The plot shows the force acting on an object as a function of time. Over the time the force is applied, the total impulse is: 
A) 0 N∙s 
B) 2 N∙s 
C) 4 N∙s 
D) 8 N∙s 
E) cannot be determined without knowing the mass of the object

Quizplus · Accepted Answer

The total impulse is equal to the area under the force vs. time graph. The area of the triangle formed by the graph is (1/2)(4 N)(2 s) = 4 N∙s. Therefore, the total impulse is 4 N∙s.

The Plot Shows the Force Acting on an Object as a Function