Position-momentum s x s p ℏ 2 displaystyle sigma xsigma pgeq frac hbar 2 Energy-time s E s t ℏ 2 displaystyle sigma Esigma tgeq frac hbar 2. It is the most familiar of the theories of physics. The subject is based upon a three-dimensional Euclidean space with fixed axes called a frame of reference.
So the equation can be written as p m v.
The above equation describes that the momentum of a body is directly proportional to the mass its velocity. The SI unit of momentum is kg ms. Momentum is a property of a moving object that makes it hard to stop. Linear momentum formula is expressed as P mv.