This shows you the differences between two versions of the page.
Both sides previous revision Previous revision | Next revisionBoth sides next revision |
183_notes:acceleration [2014/07/11 01:56] – [Why not just use change in momentum?] caballero | 183_notes:acceleration [2014/07/22 19:58] – pwirving |
---|
==== Newton's Second Law ==== | ==== Newton's Second Law ==== |
| |
The Momentum Principle (or Newton's Second Law) is a quantitative description for how a system changes it momentum when the system experiences an external force. You might already know that another way to write this principle uses the concept of acceleration (how the velocity changes with time). Mathematically, we can write Newton's Second Law like this: | The Momentum Principle (or Newton's Second Law) is a quantitative description for how a system changes its momentum when the system experiences an external force. You might already know that another way to write this principle uses the concept of acceleration (how the velocity changes with time). Mathematically, we can write Newton's Second Law like this: |
| |
$$\vec{F}_{net} = m\:\vec{a} = \dfrac{\Delta\vec{p}}{\Delta t}$$ | $$\vec{F}_{net} = m\:\vec{a} = \dfrac{\Delta\vec{p}}{\Delta t}$$ |