Friday
August 1, 2014

Homework Help: Physics

Posted by John on Monday, September 6, 2010 at 6:48pm.

A fireman, 45.1 m away from a burning building, directs a stream jet of water from a ground level fire hose at an angle of 34.1 degrees above the horizontal.
The acceleration of gravity is 9.8 m/s^2.
If the speed of the stream as it leaves the hose is 58.8 m/s, at what height will the stream of water strike the building?

Answer is: 26.3309 m

Not sure how to get the answer; how do I know when the water is headed back down? Is there a way to integrate velocity and find where the slope is equal to zero? If so, is velocity a function of time or distance here? If someone could give me the general equation and show me how to apply it that would be great.

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