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Dot Product

Reference from the original Physics I textbook.

Dot Product

With magnitudes and angles: $\vec{a} • \vec{b} = | \begin{matrix} \vec{a} \end{matrix} | | \begin{matrix} \vec{b} \end{matrix} | \cos θ$
With Components: $\vec{a} • \vec{b} = {\vec{a}}_{x} {\vec{b}}_{x} + {\vec{a}}_{y} {\vec{b}}_{y} + {\vec{a}}_{z} {\vec{b}}_{z}$

Related Glossary Terms

Work Added Equation (With Kinetic Energy), Work Equation

Index

Chapter 1 - Vector Math

Chapter 1 - Vector Math

Chapter 1 - For Future Reference - Forces as Vectors

Chapter 1 - For Future Reference - Forces as Vectors

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