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7 October, 06:51

What is the force on an object that goes from 35m/s to 85 m/s in 20 seconds and has a mass of 148kg?

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  1. 7 October, 06:53
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    We will use Newton's second law to find the resultant force:

    F = ma

    For this, we need the acceleration given by:

    a = (v - u) / t

    a = (85 - 35) / 20

    a = 2.5 m/s²

    F = 148 x 2.5

    F = 370 Newtons
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