Question

If Vector A=6i-6j+5k andB=i+2j-k find a unit vector parallel to resultant of A vector and B vector

Answer 1

Answer:

required vector is ( 7i -4j + 4k ) /9

Explanation:

Resultant of A and B vector = A + B = ( 7i -4j + 4k )

Magnitude of A+B = $\sqrt{81}$ = 9

Hence unit vector along A+ B = ( 7i -4j +4k ) /9