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12.21:
From eq. (12.1),
;
(12.4),
Eq.
from
and
,
G
2
E
2
1
2
R
Gm
g
m
m
Fr
E
=
=
combining
and solving for

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**Unformatted text preview: **E R , kg. 10 98 . 5 24 2 2 E 2 1 E × = = Fr R m gm m...

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