The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the
figure to answer the question.
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When is the body's acceleration equal to zero?
A) 2

Question

The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the
figure to answer the question.
-

When is the body's acceleration equal to zero?
A) 2 < t < 3, 5 < t < 6 
B) t = 2, t = 3, t = 5, t = 6 
C) 0 < t < 2, 6 < t < 7 
D) t = 0, t = 4, t = 7

Quizplus · Accepted Answer

The acceleration is zero when the velocity is constant or when the velocity is at a local maximum or minimum. From the graph, we can see that the velocity is constant between 2 and 3, and between 5 and 6. Therefore, the acceleration is zero during these time intervals.

The Figure Shows the Velocity V or Position S of a Body