Answer:
a = 2 m/s²
Explanation:
average acceleration = change of velocity / change of time
a = Δv/Δt = (20 - 10) / 5 = 10/5 = 2
Acceleration = (change in speed) / (time for the change)
Change in speed = (ending speed) - (starting speed)
Change in speed = (20 m/s) - (10 m/s)
Change in speed = 10 m/s
Acceleration = (10 m/s) / (5 sec)
Acceleration = 2 m/s² forward
