Question

The magnitude of the resultant vector by adding two vectors is greatest when the angle between them is in ____?

Answer 1

Answer:

As per this law, the resultant vector is R=( A2+B2+2ABcosθ). Here A and B are the two vectors and θ is the angle between them. You can see that R will be maximum when θ is equal to zero that is when the 2 vectors are parallel to each other.

Answer 2

The correct answer is "0".

Resultant of two vectors is given by parallelogram law of vector addition. As per this law, the resultant vector is R= $\sqrt{A^{2} +B^{2}+2ABcos }$θ

Here A and B are the two vectors and θ is the angle between them. You can see that R will be maximum when θ is equal to zero that is when the 2 vectors are parallel to each other.