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1.97:
a)
The law of cosines (see Problem 1.88) gives the distance as
(
29
(
29
(
29 (
29
ly,
2
.
76
4
.
154
cos
ly
77
ly
138
2
ly
77
ly
138
2
2
=
+
+
where the supplement of
6
.
25
has been used for the angle between the direction
vectors.
b) Although the law of cosines could be used again, it's far more convenient to use the
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Unformatted text preview: law of sines (Appendix B), and the angle is given by , 129 5 . 51 180 , 5 . 51 ly 138 ly 76.2 25.6 sin arcsin == where the appropriate angle in the second quadrant is used....
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This homework help was uploaded on 02/14/2008 for the course PHYS 112 taught by Professor Wheeler during the Spring '08 term at Cornell University (Engineering School).
 Spring '08
 Wheeler

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