# How do you find the momentum of a collision?

## How do you find the momentum of a collision?

Momentum calculations

- Work out the total momentum before the event (before the collision): p = m × v.
- Work out the total momentum after the event (after the collision):
- Work out the total mass after the event (after the collision):
- Work out the new velocity:

**What is collision formula?**

An elastic collision is a collision where both the Kinetic Energy, KE, and momentum, p are conserved. Moreover, as p = linear momentum = mv, then we will write m1v1i + m2v2i = m1v1f + m2v2f. …

### What happens to momentum in a collision?

Momentum is of interest during collisions between objects. When two objects collide the total momentum before the collision is equal to the total momentum after the collision (in the absence of external forces). This is the law of conservation of momentum. It is true for all collisions.

**What is the equation for momentum?**

Momentum, Impulse, and the Impulse-Momentum Theorem p = m v . You can see from the equation that momentum is directly proportional to the object’s mass (m) and velocity (v). Therefore, the greater an object’s mass or the greater its velocity, the greater its momentum.

#### What is the total momentum before a collision?

For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision. That is, the momentum lost by object 1 is equal to the momentum gained by object 2.

In an inelastic collision, momentum is conserved, but energy is not. Usually, energy is lost to the system as a result of heating, vibration, deformation of the objects, or other effects. For example, in a collision between two cars, part of the energy of the collision is transferred to bending the metal.

**What is momentum before collision?**

The total momentum before collision is equal to after collision. If the two collide, the momentum remaining is a result of their momentum offset by what direction each were going before the collision. Momentum is an energy in action, Conservation of Energy applies.

## What is the equation for Conservation of momentum?

If an object has higher momentum, then it harder to stop it. The formula for linear momentum is p = mv. The total amount of momentum never changes, and this property is called conservation of momentum.