A vector `vec(A)` When added to the vector `vec(B)=3hat(i)+4hat(j)` yields a resultant vector that
Channel: Doubtnut
Date: 2020-07-26

A vector `vec(A)` When added to the vector `vec(B)=3hat(i)+4hat(j)` yields a resultant vector that is in the positive y-direction and has a magnitude equal to that of `vec(B)`. Find the magnitude of `vec(A)`.