Post a New Question

physics

posted by .

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 theta for θi, vi for vi, g for acceleration due to gravity, and d and h as necessary.)

  • physics -

    Help will be provided if work is shown

  • physics -

    What i have with me is

    vi*sin(theta) - (g*sqrt(2*h/g))

    however it is not correct.

  • physics -

    PHYSICS

  • physics -

    Vy = Visin(theta)i
    Vx = Vicos(theta)i

    d=Vxt
    t=d/Vicos(theta)i <- substitute Vx

    h=Vyt+1/2gt^2 <- since g is -9.8 it . is -g
    so
    h=Vyt-1/2gt^2 <- then substitute

    h=Visin(theta)i x (d/Vicos(theta)i) -1/2g(d/Vicos(theta)i)^2

    now simplify
    h=dtan(theta)i - gd^2/2Vi^2cos^2(theta)i

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    a fireman 50 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 30 degrees above the horizontal. If the speed of the stream as it leaves the hose is 40.0 m/s at what height will the …
  2. physics

    a fireman 50 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 30 degrees above the horizontal. If the speed of the stream as it leaves the hose is 40.0 m/s at what height will the …
  3. physics

    A fireman 46.0 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 30.0° above the horizontal. If the speed of the stream as it leaves the hose is 40.0 m/s, at what height will the …
  4. physics help

    a fireman D=50 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 30 degrees above the horizontal. If the speed of the stream as it leaves the hose is 40.0 m/s at what height will …
  5. physics

    A fireman d = 39.0 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of èi = 25.0° above the horizontal as shown in the figure. If the speed of the stream as it leaves the hose is …
  6. Physics

    A firefighter 41.8m away from a burning building, directs Zach stream of water from a ground level fire hose at an angle of 33.0 degrees above the horizontal . If the speed of the streams it leaves the hose is 42.7m/s, at what height …
  7. Physics

    A fireman d = 33.0 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of θi = 21.0° above the horizontal as shown in the figure. If the speed of the stream as it leaves the hose …
  8. Physics

    A fireman, 43.7 m away from a burning building, directs a stream jet of water from a ground level fire hose at an angle of 31.3 degree above the horizontal. If the speed of the stream as it leaves the hose is 44.1 m/s, at what height …
  9. physics

    A fireman d = 56.0 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of θi = 24.0° above the horizontal as shown in the figure. If the speed of the stream as it leaves the hose …
  10. Science

    a fireman 50 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 30 degrees above the horizontal. If the speed of the stream is 40m/s , at what height will the stream of water strike …

More Similar Questions

Post a New Question