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![[Post New]](/templates/default/images/icon_minipost_new.gif) 26 Jan 2007 21:06:04 IST
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Determine the component of vector A that makes equal angles with the x,y,z axis?
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26 Jan 2007 21:34:30 IST
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if a line makes angle a , b ,c with x ,y ,z axis then
(cosa)^2 + (cos b)^2 +(cos c)^2 =1
given cos a =cos b= cos c
therefore cos a = +- [1/ sqrt(3)]
components of vector A
A * ( cos a I + cos b J +cos c K )
I ,J ,K are unit vectors
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The yardstick of human intelligence is the ability to overcome the last fallacy |
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27 Jan 2007 22:02:51 IST
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hiiiiii Rahul has done the question correctly ... cheers to him follow the approach .. cheers
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Puneet Agrawal
IIT Delhi
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