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Each of the three graphs represents acce...

Each of the three graphs represents acceleration versus time for an object that already has a positive velocity at time `t_1`. Which graphs show an object whose speed is increasing for the entire time interval between `t_1` and `t_2`?

A

graph I, only

B

graphs I and II, only

C

graphs I and III, only

D

graphs I, II, and III

Text Solution

Verified by Experts

The correct Answer is:
D
Acceleration is positive in all three graphs, so velocity increases in all three.
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