A fireman intends to reach a window 40 m above the ground with a water jet, issued from a nozzle 3 cm in diameter and discharging 1800 kg per minute. If the nozzle height is 2 m above the ground, then...

A fireman intends to reach a window 40 m above the ground with a water jet, issued from a nozzle 3 cm in diameter and discharging 1800 kg per minute. If the nozzle height is 2 m above the ground, then determine the maximum horizontal distance from the building where the fireman can stand and still the water jet reaches the window. Also determine the amount of water falling on the window.