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8
ˆˆ
(cos
i sin
j)
(cos
i sin
(c
o
s
c
o
s
)
i
(s
i
n
s
i
n
)
j
ˆ
( 4.4 10 N)j
CA
C
A
A
B
C
B
B
AC
A
BC
B
AC
A
BC
B
FF
F
θθ
−
=+
++
=− ×
G
73. The magnitudes of the individual forces (acting on
m
C
, exerted by
m
A
and
m
B
respectively) are
88
22
2.7
10 N
and
3.6
10 N
AC
BC
AC
BC
AC
BC
Gm m
Gm m
rr
−−
==
×
×
where
r
AC
= 0.20 m and
r
BC
= 0.15 m. With
r
AB
= 0.25 m, the angle
A
F
G
makes with the
x
axis can be obtained as
222
11
cos
cos (0.80) 217 .
2
AC
AB
BC
A
AC AB
rrr
θπ
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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

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