Before the track season started, avery could run a mile in 7: 10. avery set a goal to run the mile in 6: 30 by the end of the track season. she finished the season with a 6: 50 in the mile. she did not reach her goal of 6: 30 but she improved by 20 seconds. '

Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.