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1) A firefighter, 50m away froma building, directs a hose at an angle of 30*, if the initial speed of the stream is 40m/s, what height does it hit the building?

i'm guessing i make a triangle and solve for h

tan30= h/50, solve for h, i get 28 m

.....but it's not the right answer, what am i doing wrong?

2) A rifle is aimed horizontally at the center of a large target 200m away. The initial speed of the bullet is 500m/s. A) Where does the bullet strike the target? B) What angle above the line of sight should the rifle be to hit the target?

I don't know what equation to use:(

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# Homework Help: Firefighter hose physics problem

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