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Mathematics
Problem
A particle moves along a straight line such that its position
s
(
t
)
s(t)
s
(
t
)
in meters at time
t
t
t
seconds is given by
s
(
t
)
=
t
3
−
6
t
2
+
9
t
+
2
s(t) = t^{3} - 6t^{2} + 9t + 2
s
(
t
)
=
t
3
−
6
t
2
+
9
t
+
2
. Find the velocity of the particle at the instant when its acceleration is zero.
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