A boy standing on road has to hold umbrella at 30 with

Last updated: 6/26/2023

A boy standing on road has to hold umbrella at 30 with vertical to keep the rain away He throws umbrella and starts running at 10 km hr he finds that rain drops are hitting his head vertically The speed of raindrops w r t ground is 10 km h O 10 3 km h O 15 km h 20 km h