Writing Momentum

When I wrote about not being in a funk, I mentioned momentum. Then, I completely ignored the thought. So I thought I would come back to it.

Momentum is a strange thing. It is also a simple thing. Both in physics and in life.

Momentum is merely mass times velocity in physics. At least mathematically. And it is just the mathematical expression of Newton’s first law. A body at rest tends to stay at rest and body in motion tends to stay in motion unless it is acted upon by an outside force. ...