A vector ,b vector are equal magnitude 60 degree and their scalar product is 1|2 find their magnitudes?
Jessy , 8 Years ago
Grade 12th pass
General Physics> A vector ,b vector are equal magnitude 60...
1 Answers
Arun
Dear Jessy
As we know
Scalar product of vector a & b :
a .b = |a| |b| cos 60°
Now
Since a.b = ½
Hence
1/2 = |a|² * ½
|a|² = 1
|a| = |b| = 1
Regards
Arun( AskIITians forum expert)
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