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24 August, 11:00

1. A car's speedometer reads 40 m/s after accelerating from a standing start, for 25s. What was the magnitude of its acceleration

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  1. 24 August, 11:12
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    a = 1.6m/s^2

    Explanation:

    v1 = 0 (starts from rest)

    v2 = 40m/s

    t = 25s

    a = ?

    use equation a = v2-v1 / t

    a = 40 - 0 / 25

    a = 1.6m/s^2
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