More Interesting Kinematic Problems D In running a 100 m dash, a runner accelerates for 6.45 s while running the first 60 m and then runs at a constant velocity for the remainder of the race. a) Find the acceleration over the first 60 m. b) Determine the maximum velocity. C ) Determine the total time to run 100 m. > A dragster accelerates from rest for the entire length of the race a distance of 450 m at 14 m/s2. A parachute is then used to slow it down to a stop at - 4.5 m/s2. How far is the total distance traveled by the dragster? How much time elapses from the beginning of the race until the dragster has stopped