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Mathematics
Mathematics
Problem
A particle moves along the
x
x
x
-axis with velocity
v
(
t
)
=
3
t
2
−
4
t
+
1
v(t)=3t^{2}-4t+1
v
(
t
)
=
3
t
2
−
4
t
+
1
(in meters per second) for
t
≥
0
t\ge 0
t
≥
0
. What is the particle’s acceleration at
t
=
2
s
t=2\text{ s}
t
=
2
s
? a)
−
8
m/s
2
-8\text{ m/s}^2
−
8
m/s
2
b)
8
m/s
2
8\text{ m/s}^2
8
m/s
2
c)
6
m/s
2
6\text{ m/s}^2
6
m/s
2
d)
5
m/s
2
5\text{ m/s}^2
5
m/s
2
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