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11.83:
a) At the bottom of the path the wire exerts a force equal in magnitude to the
centripetal acceleration plus the weight,
N.
10
07
.
1
)
s
m
80
.
9
)
m
50
.
0
(
rev))
rad
2
)(
s
rev
00
.
2
(((
3
2
2
×
=
+
=
π
m
F
From Eq. (11.10), the elongation is
mm.
5

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**Unformatted text preview: **. 5 ) m 10 014 . )( Pa 10 7 . ( ) m 50 . )( N 10 07 . 1 ( 2 4 11 3 = × × ×-b) Using the same equations, at the top the force is 830 N, and the elongation is 0.0042 m....

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