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104. (a) The graph makes it clear that the period is
T
= 0.20 s.
(b) The period of the simple harmonic oscillator is given by Eq. 1513:
=2
T
m
k
π
.
Thus, using the result from part (a) with
k
= 200 N/m, we obtain
m
= 0.203
≈
0.20 kg.
(c) The graph indicates that the speed is (momentarily) zero at
t
= 0, which implies that
the block is at
x
0
= ±
x
m
. From the graph we also note that the slope of the velocity curve
(hence, the acceleration) is positive at
t
= 0, which implies (from
ma
= –
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics

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