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Physics
Physics
Problem
A car’s velocity is modeled by
v
(
t
)
=
3
t
2
−
12
t
+
5
v(t)=3t^{2}-12t+5
v
(
t
)
=
3
t
2
−
12
t
+
5
meters per second for
1
≤
t
≤
4
1\le t\le4
1
≤
t
≤
4
. What is the car’s average acceleration (in m/s
2
^{2}
2
) over this interval? a)
6
6
6
b)
3
3
3
c)
−
3
-3
−
3
d)
9
9
9
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