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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