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[" Example "D" A car travelling at a spe...

[" Example "D" A car travelling at a speed of "],[30ms^(-1)" due north along the highway makes a "],[" left turn on to a side road which heads towards "],[" due west.It takes "40" s for the car to complete the "],[" turn.At the end of "40s" ,the car has a speed of "],[20ms^(-1)" along the side road.Determine the "40],[" magnitude of average acceleration over the "40],[" second interval."]

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