15. Using the workkinetic energy theorem, we have
cos
KW FdF
d
φ
Δ= =⋅=
G
G
In addition,
12 N
F
=
and
22
2
(2.00 m)
( 4.00 m)
(3.00 m)
5.39 m
d
=+
−
+
=
.
(a) If
30.0 J
K
Δ=
+
, then
11
30.0 J
cos
cos
62.3
(12.0 N)(5.39 m)
K
Fd
−−
§·
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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, Energy, Kinetic Energy, Work

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