determine the vector which when added to the resultant of:A=3i-5j+7k and B=2i+4j-3k gives a unit vector along y axis?

Asked by akkisara | 22nd Jul, 2011, 01:31: AM

Expert Answer:

Here, =3i-5j+7k  and =2+4-3
Resultant vector, =+=(3-5+7) +(2+4-3) =5-+4
the unit vector along -direction=
hence, Required vector=-(5-+4)= -5+2-4

Answered by  | 22nd Jul, 2011, 09:51: AM

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