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November 22, 2014

Homework Help: Physics

Posted by Hayls on Monday, January 24, 2011 at 11:05am.

Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.5 m/s2 for 3.6 seconds. It then continues at a constant speed for 10.1 seconds, before applying the brakes such that the carís speed decreases uniformly coming to rest 167 meters from where it started. The yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the blue car comes to a stop.


How far does the blue car travel before its brakes are applied to slow down?

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