What would be the best equation to find momentum?

1. Feb 8, 2004

lphockey14

what would be the best equation to find momentum?

2. Feb 8, 2004

himanshu121

Probably Use

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

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

3. Feb 8, 2004

pmb_phy

Re: 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.

4. Feb 8, 2004

Guard

What are the units momentum is measured in?

5. Feb 8, 2004

pmb_phy

Momentum is measured in kilogram*meters/second (kg*m/s)

6. Feb 8, 2004

PrudensOptimus

Re: momentum

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