Q. 165.0( 1 Vote )
If 
and 
find a vector of magnitude 6 units which is parallel to the vector 
Answer :
∴ (
⇒(
LET, (
|
| = (12 + ( - 2)2 + 22)1/2
⇒|
| = (1 + 4 + 4)1/2 = (9)1/2 = 3
a unit vector in the direction of the sum of the vectors is given by:
a vector of magnitude 6 units which is parallel to the vector 
is:
Ans: 
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