A fire hose ejects a stream of water at an angle of 35.8 ° above the horizontal. The water leaves the nozzle with a speed of 21.9 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit the highest possible fire?

Answer 1

You know the distance will be the distance to the hightest point of the water path.

find time to max height:
vf=vi-gt
and vf vertical is zero at the hightest ponit, so
time=21.9*sin35.8/9.8

horizonal distance=time*21.9*cos35.8