A runner decreases his velocity from 20 m/s to 10 m/s in 2.0 s. What was his average acceleration? July 14, 2021 by Tài Đức A runner decreases his velocity from 20 m/s to 10 m/s in 2.0 s. What was his average acceleration?

Acceleration = change in velocity/change in time So you should have (20-10)/(0-2)= -10/2 = -5 So your answer is -5 Reply

Acceleration = change in velocity/change in time

So you should have (20-10)/(0-2)= -10/2 = -5

So your answer is -5

Answer: -5.0 m/s ^2

Explanation: