1. The problem statement, all variables and given/known data The question is: A fireman at point A wishes to put out a fire at B. Determine the two possible angles [tex]\theta[/tex]1 and [tex]\theta[/tex]2 at which this can be done. The water flows from the hose at vA=28m/s and the value for gravity is 9.81m/s2 [PLAIN]http://users.adam.com.au/shortround/pm.JPG [Broken] 2. Relevant equations [tex] v = v_0 + a t [/tex] [tex] x = x_0 + v_0 t + (1/2) a t^2 [/tex] [tex] v^2 = v_0^2 + 2 a \Delta x [/tex] 3. The attempt at a solution We need to seperate vA into the horizontal and vertical components. But to do this we need to know either [tex]\theta[/tex] or one of the components, but we do not know either. I have spent a long time on this question and have not got very far. I have tried using trial and error, but I've had no luck. I know that there must be a better way to do it. The angle could be above or below the horizontal. From memory the two angles must be complementary, but I'm not entirely sure on that. If anyone could just give me a couple of hints to get me going, I would be very grateful.