Question

Question #6ec5b

Answer 1

The Angle is 90°.

Explanation:

There is a formula that if `vec c` is the resultant of `vec a` & `vec b` having an angle between them `theta` it forms,
`c^2=a^2+b^2-2abcostheta` (a, b, c are the magnitude of `vec a`,`vec b`,`vec c` respectively).
Hence,
`c^2=a^2+b^2-2abcostheta`
`=>2a²=2a²+2a²costheta`
`=>costheta=0`
`=>theta=90°`.