Answer :
Acceleration = (change in speed) / (time for the change)
Change in speed = (2.5 - 1) = 1.5 m/s
Time for the change = 5 sec
Acceleration = (1.5 m/s) / (5 sec) = 0.3 m/s²
Change in speed = (2.5 - 1) = 1.5 m/s
Time for the change = 5 sec
Acceleration = (1.5 m/s) / (5 sec) = 0.3 m/s²