The graph to the right is a plot of position versus time. For which labeled region is the velocity positive and the acceleration negative?

Question

The graph to the right is a plot of position versus time. For which labeled region is the velocity positive and the acceleration negative? (A) a (B) b (C) c (D) d

Tardigrade Admin · Accepted Answer

In part (d), slope is positive and decreasing, so velocity is positive and decreasing. If velocity is decreasing, then acceleration is negative.

Q. The graph to the right is a plot of position versus time. For which labeled region is the velocity positive and the acceleration negative?

a

b

c

d

In part (d), slope is positive and decreasing, so velocity is positive and decreasing. If velocity is decreasing, then acceleration is negative.