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ConcepTest 2.14a v versus t graphs I<br />
1) decreases<br />
Consider the line labeled A in<br />
the v versus t plot. How does<br />
the speed change with time<br />
for line A?<br />
2) increases<br />
3) stays constant<br />
4) increases, then decreases<br />
5) decreases, then increases<br />
v<br />
A<br />
B<br />
t<br />
In case A, the initial velocity is<br />
positive <strong>and</strong> the magnitude of the<br />
velocity continues to increase<br />
with time.