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An airplane is flying horizontally with a speed of 1000 km/hr (278 m/s) when it drops a payload. The payload hits the ground 37 s later. (Neglect air drag and the curvature of the Earth. Take g = 10 m/s2.)

(a) At what altitude H is the airplane flying?

  • physics - ,

    The speed of the plane does not affect the time to fall. The distance that it falls in time t (when there is no initial vertical velocity component) is

    H = (g/2)*t^2

    They tell you what to use for g, although it is not the right number.

  • physics - ,

    5m x 37 x 37 = 6845 meters and you should use 4.9 not 5.

  • physics - ,

    H=(10m/s^2)/2 X (37)^2

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