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6. (a) Since the problem gives the frequency
f
= 3.00 Hz, we have
ω
= 2
π
f
= 6
π
rad/s
(understood to be valid to three significant figures). Each spring is considered to support
one fourth of the mass
m
car
so that Eq. 1512 leads to
()
(
)
2
5
car
1
1450kg 6 rad/s
1.29 10 N/m.
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 Spring '08
 Any
 Physics, Mass

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