Each of three graphs represents acceleration versus time for an object that already has a positive v

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2.Motion in Straight Line

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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 $III$

Solution

Acceleration is positive in all three cases

Standard 11

Physics

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