Question

A man moving in rain holds his umbrella inclined to the vertical even though the rain drops are falling vertically downwards. why?

Answer 1

Though the rain is falling vertically downwards the man holds the umbrella inclined to the vertical.this is because a the man is moving towards one side due to force exerted by him the directio of rain changes this he holds umbrella in that direction

Answer 2

  The umbrella is inclined in the direction of the movement of the person.

   When the person holds the umbrella vertically upwards, the rain drops which just have just crossed the bottom of the umbrella,  will fall up on the body of the person as the person walks about a foot forward...
 
   The raindrop falls from a height just below umbrella, the drop falls on the legs as the legs move forward by a foot or two...   

When the umbrella is held at an angle, the bottom of the umbrella is lower in height..  The raindrops usually fall to the ground before the legs come forward and get underneath them (drops).