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a jet airplane lands with a speed of 122 m/s and can accelerate uniformly at a max rate of - 6.2m/s2 as it comes to a rest. can this airplane land in 1.0 km runway

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Tina
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  1. average speed during stop = 122/2 = 61 m/s

    to get time to stop
    v = 0 = 122 - 6.2 t
    t = 122/6.2 = 19.7 seconds
    so
    distance = v average * t = 61*19.7 = 1200 meters

    Off the end of the runway and 200 meters into the bleak ocean

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    Damon

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