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## Class 11 Physics (India)

### Course: Class 11 Physics (India)>Unit 6

Lesson 2: Average velocity and average speed

# Average velocity and speed with direction changes: word problems

You might need: Calculator

## Problem

As shown in the figure below, Luis rushes 40, start text, m, end text toward his truck. He notices he forgot his shoes and returns back to his house. His total travel time is 60, start text, s, end text.
What is Luis’s average velocity over the 60, start text, s, end text period?
start fraction, start text, m, end text, divided by, start text, s, end text, end fraction
What is Luis’s average speed over the 60, start text, s, end text period?
start fraction, start text, m, end text, divided by, start text, s, end text, end fraction
Answer using a coordinate system where rightward is positive.
Round answer to two significant digits.
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