Question

A man running on a horizontal road at u km/h finds the rain falling vertically. He increases his speed to 2u km/h finds that the drops make angle 30° with the vertical. Find the speed of the rain with respect to the road.

Answer 1

∆ Kinematics ∆

[ Strange Directions up there +_+ , see the pic :p ]

Hope the Pic's Clear with Satisfactory Enough Handwriting