How is step 9 calculated

Lab Instructions, Part 1 1. Go to the website: Graphing of Motion Lab. E 2. Select "Desktop" mode and run the simulation. hiat times 3. Set the y-axis to display position only. (Click on the y-axis to change the axis.) 4. Set the "Acceleration" to "Porchelike," the "Braking Rate" to "Pintolike," and the "Initial Speed" to "Rest." Press start. 5. As quickly as possible, hit and hold down the gas pedal (the larger pedal on the right) for 10 seconds. 6. Neatly copy this graph onto your paper and discuss it. 7. Click on the graph's y-axis and add the velocity graph to the one you are currently displaying. On the same set of axes you already used, add this graph in a different color. Neatly copy this graph onto your paper. 8. Find the car's average velocity from 0-10s then from 10-30s. Describe these values in terms of the car's motion. 9. Find the car's average acceleration from 0-10s. Show your work for this calculated value