Question

• An aircraft attempt to fly due north at 100km per hour.if the wind blows against it from east to west at 60km per hour.it resultant velocity is?

Answer 1

The resultant velocity

$$V=\sqrt{100^2+40^2}=108\:\rm km/h$$

$$\theta=\tan^{-1} \frac{100}{40}=68^\circ\quad \rm N\;of\;W$$