411 REFERENCE · Wikibooks
A-level Physics (Advancing Physics)/Electron Behaviour as a Quantum Phenomenon/Momentum
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
All moving objects have momentum. Momentum is the product of the velocity of an object and its mass, so:
Momentum is usually denoted p, and is measured in kgms−1. Momentum is used when considering collisions of bodies as momentum, in a closed system, is constant. Force is the rate of change of momentum, so: