(adsbygoogle = window.adsbygoogle || []).push({}); Meaning of "projection"

Suppose you have two vectors, U and V.

Is it correct that the "projection" of vector U onto vector V is equal to U cos x, where U is the magnitude of vector U, and x is the angle between the two vectors? Specifically, is it correct that the projection of one vector onto another vector does not depend on the magnitude of the vector you are projecting on to?

If yes, is it also correct to say that the dot product does not represent a projection, unless you are projecting onto the unit vector?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Meaning of projection

**Physics Forums | Science Articles, Homework Help, Discussion**