VI. Speed and Stopping Distance 30 points

For the following questions, assume:

• The drag factor is 0.8.
• The braking efficiency is 0.85.
• The reaction time is 1.5 seconds.
• The brake engagement time is 0.3 seconds.

This approximates a dry asphalt road and an alert driver.

31. The highest posted speed limit in the United States is 85 miles per hour, on Texas State Highway 130. Complete the table to find the total braking distance at several different speeds between 35 and 85 miles per hour. You'll need to use the conversion factor you found in question 18 and these formulas:

• distance = speed time
•