The average speed and average velocity of the plane is calculated using: Average speed ... from 22 m/s to 30 m/s in 4 seconds. Calculate the acceleration of the car. Final velocity v ...

Since the acceleration is the rate of change of velocity, I can then use the velocity values to find acceleration values. Now I can create the following plot of acceleration as a function of time ...

When an object does not start at rest, you need to measure both the initial velocity and the final velocity to be able to calculate the acceleration. One way to to do this is to use a double mask.