## What is an example of momentum not being conserved?

For example, during projectile motion and where air resistance is negligible, momentum is conserved in the horizontal direction because horizontal forces are zero and momentum is unchanged. But along the vertical direction, the net vertical force is not zero and the momentum of the projectile is not conserved.

## Is momentum ever not conserved?

Momentum does not always change and not be conserved because when the kinetic energy is conserved by default, the collision is conserved automatically. The momentum required when the change of speed happens during a collision does not change. Even after the collision, it is said to be conserved.

## How do you tell if momentum is conserved or not?

Momentum is conserved when the mass of the system of interest remains constant during the interaction in question and when no net external force acts on the system during the interaction.

## Why is momentum not conserved during collision?

In collisions between two objects momentum is conserved. Since the initial momentum is not zero, the final momentum is not zero. Both objects cannot be at rest. It is possible for one of the objects to be at rest after the collision.

## Can momentum be lost?

That is, the momentum lost by object 1 is equal to the momentum gained by object 2. In most collisions between two objects, one object slows down and loses momentum while the other object speeds up and gains momentum. If object 1 loses 75 units of momentum, then object 2 gains 75 units of momentum.

## What does not conserved mean?

If the physical process proceeds in exactly the same way when referred to an inverted coordinate system, then parity is said to be conserved. If, on the contrary, the process has a definite handedness, then parity is not conserved in that physical process.

## Why momentum is conserved?

Momentum is a vector quantity, so both its magnitude and direction are conserved. If an object has linear momentum it will continue in the same direction at the same velocity. If an object has angular momentum is will continue spinning or orbiting about the same axis with the same angular velocity.

## Why is momentum always conserved?

Conservation of linear momentum expresses the fact that a body or system of bodies in motion retains its total momentum, the product of mass and vector velocity, unless an external force is applied to it. In an isolated system (such as the universe), there are no external forces, so momentum is always conserved.

## Is momentum always conserved in inelastic collisions?

The primary difference between elastic and inelastic collisions is the conservation of kinetic energy. Kinetic energy is conserved in elastic collisions, but is not conserved in inelastic collisions. Momentum is always conserved, regardless of collision type.