Question

A bird flying due north with a velocity at 15m/s shed a feather in air current flowing at 20m/s due east. Find the resultant and direction of the feather.

Answer 1

$v=\sqrt{v_1^2+v_2^2}=25~\frac ms,$

$\alpha=\arctan\frac{v_2}{v_1}=53°$ E to N.