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## PRACTICE PROBLEM SET 13 Now try these problems. The answers are in Chapter 23, starting on page 508. 6. If the position function of a particle is
x
(
t
)
=
2
sin
2
t
+
2
cos
2
t
,
t
>
0
x(t)=2 \sin ^{2} t+2 \cos ^{2} t, t>0
x
(
t
)
=
2
sin
2
t
+
2
cos
2
t
,
t
>
0
, find the velocity and acceleration of the particle.
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