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30 December, 06:54

A car weighing 1500 kg drives at 5m / s when it collides with a wall. It takes 0.20 seconds until the car is completely stationary. The driver weighs 90 kg. How much average force is the driver under the crash?

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  1. 30 December, 07:14
    0
    2250 N

    Explanation:

    Assuming the driver decelerates at the same rate as the car:

    a = (0 m/s - 5 m/s) / (0.20 s)

    a = - 25 m/s²

    F = ma

    F = (90 kg) (-25 m/s²)

    F = - 2250 N

    The magnitude of the average force on the driver is 2250 N.
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