Question

Calculate the average acceleration of a car that changes speed from 0 m/s to 25 m/s in 10 seconds.

Answer 1

average acceleration = change in speed / interval of time
change in speed = 25-0 = 25m/s
time interval = 10s
average acceleration = 25/10 = 2.5m/s²

Answer 2

change in speed=25m/s
total time interval=10s
average acceleration=25/10
                              =2.5m/s^2