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6.31:
Use the Work-Energy Theorem and the results of Problem 6.30.
a)
s
/
m
83
.
2
kg
10
)
J
40
)(
2
(
=
=
v
b) At
m
12
=
x
, the 40 Joules of kinetic energy will have been increased by 20 J, so

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**Unformatted text preview: **s / m 46 . 3 kg 10 ) J 60 )( 2 ( = = v ....

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