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21 November, 22:21

A car slows down from 27.7 m/s

to 10.9 m/s in 2.37 s.

What is its acceleration?

+2
Answers (1)
  1. 22 November, 00:25
    0
    a = (Vf - Vi) / t = (10.9 - 27.7) / 2.37 = - 16.8 / 2.37 = - 7.09 m/s/s

    negative means slowing down
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