Occasionally, I’ll revisit some old posts to provide updates and also to introduce the many new subscribers at THB to things they may have missed. The original 2020 post that I revisit today — The ...

Momentum in a simple way is a quantity of motion. Here quantity is measurable because if an object is moving and has mass, then it has momentum. If an object does not move then it has no momentum.

In 1687, Sir Isaac laid down the laws of motion in Principia Mathematica- laws which have still held true over 300 years later. In the law of conservation of momentum, he noted that the momentum of a ...