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16 November, 10:57

A missile is fired from a jet flying horizontally at Mach 2 (2200 ft/s). The missile has a horizontal acceleration of 1000 ft/s2. Calculate its horizontal velocity at 10.0 seconds after it is fired. (Assume constant acceleration of the missile throughout its flight.) 12,200 ft/s 10,000 ft/s 2300 ft/s 7800 ft/s

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  1. 16 November, 11:01
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    12200 ft/s

    Explanation:

    The question is on constant acceleration

    →Uniform acceleration motion is given by⇒⇒⇒ Vf=Vo + at ... (a)

    →Where Vf = final velocity=?

    Vo=initial velocity = 2200 ft/s

    a = acceleration = 1000ft/s²

    t = 10.0 sec

    Substitute values in (a) above

    Vf=Vo + at

    Vf = 2200 + (1000*10) = 12200 ft/s
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