Answer:
2
Step-by-step explanation:
4/2 is equal to 4 divided by 2, which is 2.
His acceleration is 1.8m/s²
acceleration, a = velocity, v / time, t
Velocity = 18m/s, unit is in m/s
time = 10 seconds, unit is in s
Therefore, a = 18m/s/10s = 1.8m/s²