# Problem01_97 - 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

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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).

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