Question

during which segment is the vehicle speeding up while moving backward
during which segment is the vehicle speeding up while moving backward
a d
b b
c e
d a
e c

Explanation:

Step1: Analyze velocity - time graph

In a velocity - time graph, a negative velocity means moving backward and a positive slope means speeding up.

Step2: Check each segment

Segment A: Positive velocity, moving forward.
Segment B: Zero acceleration (constant velocity), moving forward.
Segment C: Negative acceleration, moving forward.
Segment D: Negative velocity and positive slope, moving backward and speeding up.
Segment E: Negative velocity and zero slope, moving backward with constant speed.

Answer:

A. D