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August 22, 2014

Homework Help: physics2

Posted by Anonymous on Thursday, February 16, 2012 at 3:51pm.

A drag racer crosses the finish line of a 304.8 m track with a final speed of 121 m/s.
(a) Assuming constant acceleration during the race, find the racer's time and the minimum coefficient of static friction between the tires and the road.
time 1 s
minimum coefficient of friction 2

(b) If, because of bad tires or wet pavement, the acceleration were 31.1% smaller, how long would it take to finish the race?
3 s

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