Answer:
8.89m/s^2
Step-by-step explanation:
The question is asking what rate the dragster is accellerating. In science, acceleration is a change in velocity (speed) and direction. So, the speed decreases 40 m/s. It does this in 4.5 seconds. That's 40m/4.5 seconds. So, when you simplify that, it's 8.999999...m/s.