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Home > PC3 > Chapter 10 > Lesson 10.1.2 > Problem 10-40

10-40.

A car’s distance from home is given in the following table. Assume the car started from home.

Time (min)

Distance (miles)

  1. Calculate the average velocity in miles per hour for each interval.

    First interval, 5 - 7 minutes: 

  2. What does a positive velocity indicate? A negative velocity?

    The first interval has a positive velocity and the distance changes from miles from home to miles from home.
    The second interval has a negative velocity and the distance from home changes from miles to mile.

  3. What was the average velocity for the entire 45 minutes? Was the car ever traveling at that rate?

  4. Write a scenario to describe the car’s trip. Be sure to include the times that any changes were taking place.