A man standing on a road has to hold his umbrella at `30^(@)`  with the vertical to keep the
Channel: Doubtnut
Date: 2020-08-30

A man standing on a road has to hold his umbrella at `30^(@)`  with the vertical to keep the rain away. He throws the umbrella and starts running at 10km/hr. He finds that rain drop are hitting his head vertically. Find the speed of rain drops with respect to (a) road (b) the moving man.