Answer: 3.33m/s²
Step-by-step explanation:
Acceleration = rate of change in velocity with time
Acceleration = change in velocity / time
Initial velocity (u) = 10 m/s
Final velocity (v) = 20m/s
time (t) = 3s
a = V - U / t
a = (20 - 10) / 3
a = 10 / 3 = 3.33m/s²