A runner moving at a velocity of 6 m/s increases the velocity in a 2 s time interval to a rate of 10 m/s. What is the rate of acceleration?

A runner moving at a velocity of 6 m/s increases the velocity in a 2 s time interval to a rate of 10 m/s. What is the rate of acceleration? 





A. 4 m/s2
B. 4 m/s
C. 2 m/s2
D. - 2 m/s2






Answer: C