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### Course: Mechanics (Essentials) - Class 11th>Unit 4

Lesson 3: Why do we need both distance and direction to truly grasp motion?

# Average velocity and speed with direction changes: word problems

You might need: Calculator

## Problem

As shown in the figure below, Luis rushes $40\phantom{\rule{0.167em}{0ex}}\text{m}$ toward his truck. He notices he forgot his shoes and returns back to his house. His total travel time is $60\phantom{\rule{0.167em}{0ex}}\text{s}$.
What is Luis’s average velocity over the $60\phantom{\rule{0.167em}{0ex}}\text{s}$ period?
$\frac{\text{m}}{\text{s}}$
What is Luis’s average speed over the $60\phantom{\rule{0.167em}{0ex}}\text{s}$ period?
$\frac{\text{m}}{\text{s}}$
Answer using a coordinate system where rightward is positive.
Round answer to two significant digits.
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