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a man hods a rifle in a horizontal postion 4 feet above the ground and shoots the bullet with an initial velocity of 2000 fps horizontally. it may be assumed that the ground is level, what will be the horizontal distance from the man to the point at which the bullet strikes the ground?

  • math -

    bullet fall 4 ft , g = 32 ft/s^2

    4 = 16 t^2
    t = sqrt (4/16) = 2/8 = 1/4 second
    how far does it go horizontal in 1/4 second?
    d = 2000*1/4 = 500 ft

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