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15 May, 06:07

declaration a plane at the uniform rate of 8.0 meter/second ^2, a pilot stops the plane in 484 meters. how fast was the plane going before breaking began?

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  1. 15 May, 09:26
    0
    88 m/s

    Step-by-step explanation:

    The appropriate formula relating initial speed v, acceleration a, and distance d is ...

    v² = 2ad

    v² = 2 (8 m/s²) (484 m) = 7744 m²/s²

    Taking the square root gives ...

    v = √7744 m/s = 88 m/s
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