AP EAPCET 23-Aug-2021 Shift 2 Paper

We know that, the magnitude of resultant of two vectors A and B,
R=√A2+B2+2‌AB‌cos‌θ
Неге, R→Rmax, when cos‌θ is maximum
i.e.cos‌θ=1⇒θ=0°
Now, we getRmax=√A2+B2+2‌AB =A+B
Hence, the resultant is maximum when angle between two vectors is 0°.