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3 December, 19:46

A car starts from rest and increases its speed to 18 m/s in 22 seconds. What is the cars acceleration

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  1. 3 December, 20:13
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    Magnitude of acceleration = (change of speed) / (time for the change)

    Change of speed = (speed at the end) - (speed at the start)

    Change of speed = (18 m/s) - (0 m/s) = 18 m/s

    Time for the change = 22 sec

    Magnitude of acceleration = (18 m/s) / (22 sec)

    Magnitude of acceleration = 0.818 m/s²
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