92. (a) With SI units understood, the net force is
()
net
1
2
ˆˆ
3.0 N
2.0 N i
4.0 N
6.0 N
j
FF
F
=+=
+
−
+
+
−
GG
G
which yields
net
(1.0 N)i
(2.0 N) j.
F
=−
G
(b) The magnitude of
net
F
G
is
22
(1.0 N)
( 2.0 N)
2.2 N.
F
=+
−
=
(c) The angle of
F
G
is
1
2.0 N
tan
63 .
1.0 N
θ
−
§·
−
==
−
°
¨¸
©¹
(d) The magnitude of
G
a
is
2
net
/
(2.2 N)/(1.0 kg)
2.2 m/s .
aF m
=
(e) Since
G
F
net
is equal to
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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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