Final answer:
The acceleration of the Amazon truck as it increases its speed from 25 m/s to 45 m/s in 2.5 seconds is calculated to be 8 m/s².
Step-by-step explanation:
The question is seeking to determine the acceleration of the Amazon truck when it increases its speed from 25 m/s to 45 m/s in 2.5 seconds. Acceleration is defined as the rate of change of velocity over time and is calculated using the formula a = ∆v / ∆t, where ∆v is the change in velocity and ∆t is the change in time.
To find the truck's acceleration, we calculate the change in velocity: 45 m/s - 25 m/s = 20 m/s. We then divide this by the time it takes to accelerate, which is 2.5 seconds. This gives us an acceleration of 20 m/s / 2.5 s = 8 m/s². Therefore, the acceleration of the truck is 8 m/s².