Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

Question #3597d

1 Answer

Aug 2, 2017

$| | B | | cos θ$ $||B||costheta$ is the projection of $\to B$ $vecB$ along the direction of $\to A$ $vecA$ .

Explanation:

The scalar (dot) product of $\to A$ $vecA$ and $\to B$ $vecB$ is defined by

$\to A \cdot \to B = A B cos θ$ $vecA*vecB=ABcostheta$

where $A$ $A$ and $B$ $B$ are the respective magnitudes of $\to A$ $vecA$ and $\to B$ $vecB$ and $θ$ $theta$ is the angle between $\to A$ $vecA$ and $\to B$ $vecB$ .

Introduction to Mechanics by Kleppner and Kolenkow

Related questions

See all questions in Introduction to Vectors

Impact of this question

1567 views around the world

You can reuse this answer
Creative Commons License