What would be the best equation to find momentum?

  • Thread starter lphockey14
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In summary, the best equation to find momentum is \vec p = m \vec v or \vec F = \frac{d\vec p}{dt}. The momentum of a particle can be calculated using the equation \mathbf{p} = m\mathbf{v}, where mass and velocity are known. Momentum is measured in kilogram*meters/second (kg*m/s) and can also be calculated using the equation E^2 - (pc)^2 - p^2c^4 = 0.
  • #1
lphockey14
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what would be the best equation to find momentum?
 
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  • #2
Probably Use

[tex]\vec p = m \vec v[/tex]
Or

[tex] \vec F =\frac{d\vec p }{dt} [/tex]
 
  • #3


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

[tex]\mathbf{p} = m\mathbf{v}[/tex]

Once you know the mass and the velocity you know the momentum.
 
  • #4
What are the units momentum is measured in?
 
  • #5
Originally posted by Guard
What are the units momentum is measured in?

Momentum is measured in kilogram*meters/second (kg*m/s)
 
  • #6


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


E^2 - (pc)^2 - p^2c^4 = 0
 

1. What is momentum?

Momentum is a measure of an object's motion and is calculated by multiplying its mass by its velocity.

2. Why is momentum important?

Momentum is important because it helps us understand how an object will behave when it interacts with other objects. It is also a conserved quantity, meaning it cannot be created or destroyed, only transferred between objects.

3. What is the equation for momentum?

The equation for momentum is p = mv, where p is momentum, m is mass, and v is velocity. It is typically measured in kilograms-meters per second (kg*m/s).

4. How is momentum different from velocity?

Momentum and velocity are related but different concepts. Velocity is a measure of the speed and direction of an object's motion, while momentum is a measure of the object's motion itself. Velocity is a vector quantity, while momentum is a vector quantity with both magnitude and direction.

5. Can momentum be negative?

Yes, momentum can be negative. The direction of momentum is determined by the direction of the object's velocity, so if an object is moving in the negative direction, it will have a negative momentum. This can also happen if the mass and velocity have opposite directions.

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