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?