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Mathematics
Mathematics
Problem
The position of a particle moving along the
x
x
x
-axis is
s
(
t
)
=
t
3
−
6
t
2
+
9
t
s(t)=t^{3}-6t^{2}+9t
s
(
t
)
=
t
3
−
6
t
2
+
9
t
meters for
t
≥
0
t\ge 0
t
≥
0
. Determine every time interval on which the particle’s speed is decreasing.
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