# Question: Do you expect the momentum of the two billiard ball system to be conserved before and after the collision?

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The collision is so forceful that it breaks one of the pucks into two pieces. Kinetic energy is likely not conserved in the collision, but momentum will be conserved.

## What happens to all the momentum when two billiard balls collide?

When two billiard balls collide the collision is nearly elastic. An elastic collision is one in which the kinetic energy of the system is conserved before and after impact. … For collisions between balls, momentum is always conserved (just like in any other collision).

## When two billiard balls collide which is always conserved?

When two objects collide, they interact during the collision and the elastic forces that arise upon contact of the two objects with each other provide the change in object’s velocity and/or direction of motion. However, total momentum and masses of two objects are usually conserved in collisions.

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## What can you infer about the total momentum of the billiard balls before and after the collision?

The Total Momentum before and after collision remains the same. Explanation: … A moving cue ball has an initial momentum. After every collision with another stationary ball, the momentum, which is the product of their mass and velocity, of the balls is conserved.

## Is linear momentum of the two ball system the same after the collision as it is before?

Two balls with equal masses, m, and equal speed, v, engage in a head on elastic collision. … Since the balls of equal mass are moving at equal and opposite speeds, the total linear momentum of the system is zero. For linear momentum to be conserved after the collision, both balls must rebound with the same velocity.

## Is momentum always conserved?

In collisions between two isolated objects Newton’s third law implies that momentum is always conserved. … Collisions in which the kinetic energy is also conserved, i.e. in which the kinetic energy just after the collision equals the kinetic energy just before the collision, are called elastic collision.

## What has the greatest effect on an object’s momentum?

The momentum change is dependent upon the velocity change; the object with the greatest velocity change has the greatest momentum change.

## What are 3 types of collisions?

Collisions are of three types:

• perfectly elastic collision.
• inelastic collision.
• perfectly inelastic collision.

## What does the two types of collision have in common?

There are two general types of collisions in physics: elastic and inelastic. An inelastic collisions occurs when two objects collide and do not bounce away from each other. … In an elastic collision, both momentum and kinetic energy are conserved.

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## What are the 4 types of collisions?

If two objects (a car and a truck, for example) collide, momentum will always be conserved. There are three different kinds of collisions, however, elastic, inelastic, and completely inelastic. Just to restate, momentum is conserved in all three kinds of collisions.

## Why is momentum always conserved?

The conservation of momentum is simply a statement of Newton’s third law of motion. During a collision the forces on the colliding bodies are always equal and opposite at each instant. These forces cannot be anything but equal and opposite at each instant during collision. … Therefore the momentum is always conserved.

## Is momentum conserved in an explosion?

Example of Momentum Conservation: Explosion Problem

After and during the explosion, the objects fly away in different directions and in different speeds. Momentum is always conserved, in this case, the intitial momentum for everything is zero. … The initial momentum is zero, because nothing is moving.

## What happens when one billiard ball hits another identical billiard ball?

It will have transferred all of its kinetic energy to the other ball, which will move forward with the same velocity that the cue ball had before the collision. Collisions can only be elastic if the masses are equal. The masses of billiard balls are the same, which can make some collisions close to elastic.

## Is momentum conserved when a ball hits a wall?

When it hits a vertical wall it rebounds with a horizontal velocity v to the left. Since momentum is mass times velocity there would be a tendency to say momentum has been conserved.

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## Is momentum conserved when a ball bounces?

conservation of momentum: The amount of momentum in a system remains the same after a collision. elastic collision: A collision in which all of the momentum is conserved. For example, a ball that bounces back up to its original height. … inelastic collision: A collision in which the kinetic energy is not conserved.

## What happens when two objects collide?

When two objects collide, each object pushes the other. … Newton’s third law states that when one object exerts a force on another, the second object exerts an equal but opposite force on the first object. These forces are sometimes called action force andreaction force or force pairs. 