Allyson Felix is running a 100m dash. When the gun goes off, she leaves the starting blocks and continues speeding up until 6s into the race, when she reaches her top speed of 11m/s. She holds this speed for 2s; then she slows down to 10m/s by the time she crosses the finish line at a time of 11s. a. What was her acceleration from 6 to 8s into the race? b. What was her acceleration from 8 to 11s into the race