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