What Is Speed?

This section provides a quick introduction of speed, which is a derived property of a moving object by calculating the distance the object has moved within a single unit of time.

What Is Speed? Speed is a derived property of a moving object by calculating the distance the object has moved within a single unit of time.

The speed of a moving object can be expressed as a formula: v = d/t, where v represents the speed, d represents the distance the object has moved, and t represents the duration of time. The standard units of measure used in this formula are:

v (speed): meter per second (m/s)
d (distance): meter (m)
t (time): second (s)

For example, to calculate the speed of a running athlete, we can use the following process:

So the speed of the running athlete is v = 10 m/s.

Speed, Distance and Time Formula
Speed, Distance and Time Formula

Last update: 2014.

Table of Contents

 About This Book

 Introduction of Space

 Introducion of Frame of Reference

 Introducion of Time

Introduction of Speed

What Is Speed?

 List of Various Speeds

 Different Speeds Observed in Different Frames

 Measuring Speed of Light - Roemer's Method

 Measuring Speed of Light - Fizeau's Method

 Measuring Speed of Light - Foucault's Method

 Newton's Laws of Motion

 Introduction of Special Relativity

 Time Dilation in Special Relativity

 Length Contraction in Special Relativity

 The Relativity of Simultaneity

 Introduction of Spacetime

 Minkowski Spacetime and Diagrams

 References

 PDF Printing Version