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Vector A has components ax=3,ay=4.Find the components of vector C which is perpendicular to vector A and has magnitude of 5 units.

alok sahni , 6 Years ago
Grade 9
anser 1 Answers
Aditya Gupta

Last Activity: 6 Years ago

 
hello alok. let the components of vector c be (u, v).
as a and c are perpendicular, a.c=0
so that 3u+4v=0
also u^2+v^2= 5^2
solving both eqns we get u = –4 and v=3 or u=4 and v = – 3
so both these sets of components are valid solutions.
kindly approve :)
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