Question

3.
The vector that must be added to the vector î - 3j + 2k and
31 +61 - 7k so that the resultant vector is a unit vector
along the y-axis is
(a) 4 +2j+5k
(b) - 45 – 25 + 5k
(c) 3 +4j+5k
(d) Null vector​

Answer 1

Answer:

The correct answer is option-D ,go with it