Question

Rain falls vertically downwards at 4m/s. if wind blows at 5m/s towards south. find the direction and the velocity of the rainfall​

Answer 1

Explanation:

Velocity of wind will be added to velocity of rain 

Velocity of rain Vr=4(−j^) m/s

Velocity of wind Vw=3(i^) m/s

Net velocity V=Vr+Vw

=3i^+(−4j^)

angle from vertical will be θ=tan−1∣−4∣3=37o.