physics

A fireman, 29.1 m away from a burning building, directs a stream of water from a ground level fire hose at an angle of 48.5° above the horizontal. If the speed is 51.6 m/s, at what height will the stream of water hit the building?

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asked by John
  1. Friction is a big factor in water streams in the air. Ignoring friction,


    hf=hi+vi'*t-4.9t^2

    where t can be found by the horizontal

    29.1=vi" * t
    where
    vi' (vertical)=51.6*sin48.5
    vi" (hoizontal)=51.6*cos48.5

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