An object has an average acceleration of 3.87 m/s² between two times. The object has a position of 5 m at the earlier of these two times and a position of 18 m at the later of these two times. The object have a velocity of 9 m/s at the earlier of the these two times and a velocity of 28 m/s at the later of these two times. What is the average velocity of the object between these two times?
a. 2.648 m/s
b. 4.634 m/s
c. 4.157 m/s
d. 1.377 m/s
