Answer:
2m/s
Explanation:
speed = distance÷time
speed =90÷45=2m/s
∆x=300 m×2
∆t=1.5 s
v=∆x/∆t → v=2×300/1.5 = 400 m/s
The answer is C she didn't mark C so its your best best of trying.Good Luck!