Homework Help: physics

Posted by alejandra aguinaga on Wednesday, November 28, 2012 at 5:40pm.

A race car completes the final lap of a race on a 2-kilometer circular track. At the start of the lap, it crosses the line at 60 meters/second. It completes the lap 28.57 seconds later, crossing the line at 85 meters/second. Calculate the displacement and average acceleration of the car within the span of 12 seconds

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