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July 31, 2015

Homework Help: science

Posted by Quetta on Thursday, June 9, 2011 at 8:15pm.

a runner training for a race times her 400 meter laps around a track. her times are lap 1 60 seconds, lap 2 57 seconds, lap 3 55 seconds and lap 4 53 seconds. what is her avaerage velocity in meters per second (m/s)?

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