Home > PC3 > Chapter 9 > Lesson 9.1.4 > Problem9-83

9-83.

A car travels $45$ mph for $3$ hours and $55$ mph for the next two hours.

1. Draw a speed vs. time graph of the situation.

2. What was the car’s average velocity during this trip?

$\text{distance = (rate)(time)}$
$\text{average velocity = (total distance)} ÷ \text{ (total time)}$

3. What is the area under your curve from $0 ≤ h ≤ 5$? What does it represent in this situation?