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15 September, 12:58

A car slows down from 27.7 m/s to 10.9 m/s in 2.37s. What is the acceleration?

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  1. 15 September, 13:02
    0
    A = (Vf - Vi) / t = (10.9 - 27.7) / 2.37 = - 16.8 / 2.37 = - 7.09 m/s/s

    negative means slowing down
  2. 15 September, 13:23
    0
    Acceleration = (final velocity - initial velocity) / time taken

    = (10.9-27.7) / 2.37

    = - 7.088 m/s2
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