The figure shows the velocity versus time curve for a car traveling along a straight line. Which of the following statements is false?
A)No net force acts on the car during interval B.
B)Net forces act on the car during intervals A and C.
C)Opposing forces may be acting on the car during interval B.
D)Opposing forces may be acting on the car during interval C.
E)The magnitude of the net force acting during interval A is less than that during C.

Question

The figure shows the velocity versus time curve for a car traveling along a straight line. Which of the following statements is false? 
A)No net force acts on the car during interval B. 
B)Net forces act on the car during intervals A and C. 
C)Opposing forces may be acting on the car during interval B. 
D)Opposing forces may be acting on the car during interval C. 
E)The magnitude of the net force acting during interval A is less than that during C.

Quizplus · Accepted Answer

From the graph, we can see that the slope of the curve is steeper during interval C as compared to interval A. This implies that the magnitude of the net force acting on the car is greater during interval C than during interval A. Therefore, statement E is false. Statements A, B, C, and D are all true based on the graph.

The Figure Shows the Velocity Versus Time Curve for a Car