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Projectile Motion I think I need some equations

  1. Nov 21, 2006 #1
    Im trying to figure out this problem, but Im not sure if I have the equation(s) I need.

    "A ball is thrown horizontally out the window of a building with a velocity of 8.0 m/s from a height of 2500 m. How far from the base of the building will the ball land?"

    a) 54 m
    b) 60 m
    c) 90 m
    d) 115 m
    e) 180 m

    The equations I have for the X value (distance in X) include the following:
    Vx = ▲x/▲t
    ▲X = V0 * ▲t
    Vfx^2 = Vix^2

    Is this all I need to find the answer? Or am I missing some equation(s)?
     
  2. jcsd
  3. Nov 21, 2006 #2
    Im trying to figure out this problem, but Im not sure if I have the equation(s) I need.

    "A ball is thrown horizontally out the window of a building with a velocity of 8.0 m/s from a height of 2500 m. How far from the base of the building will the ball land?"

    a) 54 m
    b) 60 m
    c) 90 m
    d) 115 m
    e) 180 m

    The equations I have for the X value (distance in X) include the following:
    Vx = ▲x/▲t
    ▲X = V0 * ▲t
    Vfx^2 = Vix^2

    Is this all I need to find the answer? Or am I missing some equation(s)?
     
  4. Nov 21, 2006 #3
    Im trying to figure out this problem, but Im not sure if I have the equation(s) I need.

    "A ball is thrown horizontally out the window of a building with a velocity of 8.0 m/s from a height of 2500 m. How far from the base of the building will the ball land?"

    a) 54 m
    b) 60 m
    c) 90 m
    d) 115 m
    e) 180 m

    The equations I have for the X value (distance in X) include the following:
    Vx = ▲x/▲t
    ▲X = V0 * ▲t
    Vfx^2 = Vix^2

    Is this all I need to find the answer? Or am I missing some equation(s)?
     
  5. Nov 21, 2006 #4
    Sorry for the TRIPLE posts................my browser was going crazy
     
  6. Nov 21, 2006 #5
    Find the time it takes to fall using a kinematic in the y direction and then use that to find distance in the x


    EDIT-wrong thread, someone else answered though
     
    Last edited: Nov 21, 2006
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