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65. (a) From the graph, we find
x
m
= 7.0 cm = 0.070 m, and
T
= 40 ms = 0.040 s.
Thus,
the angular frequency is
ω
= 2
π
/
T
= 157 rad/s.
Using
m
= 0.020 kg, the maximum kinetic
energy is then
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Unformatted text preview: 1 2 m v 2 = 1 2 m ω 2 x m 2 = 1.2 J. (b) Using Eq. 155, we have f = ω /2 π = 50 oscillations per second. Of course, Eq. 152 can also be used for this....
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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, Energy

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