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28. We make use of Eq. 725 and Eq. 728 since the block is stationary before and after
the displacement. The work done by the applied force can be written as
22
1
()
2
as
f
i
WW
k
x
x
=−
=
−
.
The spring constant is
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics, Force, Work

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