Vectors Question 178

Question: In the above problem, the speed of raindrops w.r.t. the moving man, will be

Options:

A) $ 10/\sqrt{2},km/h $

B) 5 km/h

C) $ 10\sqrt{3},km/h $

D) $ 5/\sqrt{3},km/h $

Show Answer

Answer:

Correct Answer: C

Solution:

Taking vertical components equation (i) gives $ v _{rg}\cos 30{}^\circ =v _{rm}=20\frac{\sqrt{3}}{2}=10\sqrt{3},km/hr $