hey can anyone answer this for me and tell me why in a simple way thanks?

Question

A fireman 50.0 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 30.00 above the horizontal. If the speed of the stream as it leaves the hose is 40.0 m/s, at what height will the stream of water strike the building?

Answer 1

Once the water leaves the hose it is no longer a fluid flow but lots of water drops that behave like balls that are thrown in the air. so solve these equations for h by eliminating t
50=40 cos(30) t
h=40 sin(30) t-1/2 g t^2
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