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Course: High school physics > Unit 1

Lesson 3: Average velocity and average speed
Science
High school physics
One-dimensional motion
Average velocity and average speed
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Average velocity and speed with direction changes: word problems

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Problem

As shown in the figure below, Luis rushes 40m toward his truck. He notices he forgot his shoes and returns back to his house. His total travel time is 60s.
What is Luis’s average velocity over the 60s period?
  • Your answer should be
  • an exact decimal, like 0.75
ms
What is Luis’s average speed over the 60s period?
  • Your answer should be
  • an exact decimal, like 0.75
ms
Answer using a coordinate system where rightward is positive.
Round answer to two significant digits.