# What would be the best equation to find momentum?

#### lphockey14

what would be the best equation to find momentum?

Related Other Physics Topics News on Phys.org

#### himanshu121

Probably Use

$$\vec p = m \vec v$$
Or

$$\vec F =\frac{d\vec p }{dt}$$

#### pmb_phy

Re: momentum

Originally posted by lphockey14
what would be the best equation to find momentum?
The momentum of what? Given what? The definition of momentum of a particle is

$$\mathbf{p} = m\mathbf{v}$$

Once you know the mass and the velocity you know the momentum.

#### Guard

What are the units momentum is measured in?

#### pmb_phy

Originally posted by Guard
What are the units momentum is measured in?
Momentum is measured in kilogram*meters/second (kg*m/s)

#### PrudensOptimus

Re: momentum

Originally posted by lphockey14
what would be the best equation to find momentum?

E^2 - (pc)^2 - p^2c^4 = 0