A firefighter a distance d from a burning building directs a stream of water from a fire hose at angle θi abov?
A firefighter a distance d from a burning building directs a stream of water from a fire hose at angle θi above the horizontal as in the figure. If the initial speed of the stream is vi, at what height h does the water strike the building? (Use any variable or symbol stated above along with the following as necessary: g.)
h = ?
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The time it takes the water to travel to the building is found by
d=vi*cosθi*t solve for t
Then use
h=vi*sinθi*t-.5*g*t^2 to find the height