Linear Momentum

We have already described "the motion" of a moving object in terms of its Kinetic Energy

KE = (1/2) m v2

Another way to describe "the motion" of a moving object is its linear momentum

Momentum = mass x velocity

p = m v

This means that momentum is a vector; there is a direction associated with momentum. Momentum and Kientic Energy both describe a moving object. They are somewhat similar. But they are different things different quantities. One of the differences is that Kinetic Energy is a scallar and momentum is a vector.


Momentum has units of [ p ] = [ kg ] [ m / s] = kg-m/s

There is no special name given to these units.


Return to ToC, Momentum

(c) 2005, Doug Davis; all rights reserved