### 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.

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

First interval, 5 - 7 minutes:

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

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

Time (min) | Distance (miles) |
---|---|