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63. Since the period of a uniform circular motion is
2/
Tr
v
π
=
, where
r
is the radius and
v
is the speed, the centripetal acceleration can be written as
2
22
2
12
4
.
vr
r
a
rr
T
T
ππ
§·
==
=
¨¸
©¹
Based on this expression, we compare the (magnitudes) of the wallet and purse
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 Spring '08
 Any
 Physics, Acceleration, Circular Motion

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