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26 September, 03:04

An airplanes lands with a velocity of + 75 m/s and comes to a stop in 20 seconds. What is the acceleration of the airplane while stopping?

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  1. 26 September, 06:58
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    The acceleration of the car, a = - 3.75 m/s²

    Explanation:

    Given data,

    The initial velocity of the airplane, u = 75 m/s

    The final velocity of the plane, v = 0 m/s

    The time period of motion, t = 20 s

    Using the I equations of motion

    v = u + at

    a = (v - u) / t

    = (0 - 75) / 20

    = - 3.75 m/s²

    The negative sign indicates that the plane is decelerating

    Hence, the acceleration of the car, a = - 3.75 m/s²
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