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2 November, 22:55

A bullet is fired horizontally with an initial velocity of 144.7 m/s from a tower 11 m high. if air resistance is negligible, what is the horizontal distance the bullet travels before hitting the ground?

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  1. 2 November, 23:08
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    H = 11 m, the vertical distance that the bullet falls.

    Initial vertical velocity = 0

    Horizontal velocity = 144.7 m/s

    The time, t, taken to fall 11 m is given by

    (1/2) * (9.8 m/s²) * (t s) ² = (11 m)

    4.9t² = 11

    t = 1.4983 s

    If aerodynamic resistance is ignored, the horizontal distance traveled before the bullet hits the ground is

    d = (144.7 m/s) * (1.4983 s) = 216.8 m

    Answer: 216.8 m
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