A pipe which can be swiveled in a vertical plane in mounted on a cart. The cart moves uniformly along a horizontal path with a velocity v_(1)=2m//s. A what angle alphato the horizontal should the pipe be placed so that drops of rain falling vertically with a velocity v_(2)=6m//s move parallel to the walls of the pipe without touching them.

A pipe which can be swiveled in a vertical plane in mounted on a cart.

1.	A pipe which can be swiveled in a vertical plane in mounted on a cart. The cart moves uniformly along a horizontal path with a velocity v_(1)=2m//s. A what angle alphato the horizontal should the pipe be placed so that drops of rain falling vertically with a velocity v_(2)=6m//s move parallel to the walls of the pipe without touching them.
Answer» ANSWER :`TAN^(-1)3`