# Your question: What happens when one billiard ball hits another identical billiard ball?

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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).

## Why does a pool ball stop when it hits another ball?

Why the Cue Ball Stops When it Hits Another Ball

It is based on the law of physics called “conservation of momentum.” That law states that when two balls of the same mass collide, the ball that receives the hit will go off at the same speed as the ball that hit it.

## What will happen to the momentum of a ball when it hits another ball?

When the balls collide, they share energy, momentum and angular momentum. … In elastic collisions all energy spent on the deformations are stored as elastic potential energy – this is returned as kinetic energy for the motion as soon as the flexible bonds have bounced back.

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## What is the momentum of two billiard balls that collide?

This is because Newtons third law of motion states that forces are equal in size and opposite in direction- so when the balls collide, the momentum of the first ball is lost and is gained by the second ball and the total momentum of the two balls are the same before and after the collision.

## When a ball at a billiard table hits another ball it is an example of elastic collision?

In a game of pool, the white ball, known as the cue ball, is hit and collides with another stationary ball, known as the object ball. Because of the hardness of pool balls, this collision is considered almost perfectly elastic collision, one in which the kinetic energy is conserved.

## What happens 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 a cue ball hits another billiard ball what is special about the angle between the balls after colliding?

If the balls hit at an angle, the object ball will move, and the cue ball will continue to move. The cue ball will move at around a 90 degree angle to an imaginary line drawn through the center of both balls at the moment they impact.

## Is momentum conserved when a ball is dropped?

Momentum is conserved only for a closed system. … When a body drops from a height, it gains momentum down, while the earth gains the same momentum up. Since the earth is very massive, you can not observe its motion in reaction. Same goes for a ball rolling downhill.

## 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.

## What happens when a small ball hits a big ball?

Large and Small Ball Collision Demonstrates the change in momentum and energy that occurs when two objects of significantly different masses collide. … When the two balls are dropped with the tennisball on top, the tennisball will go flying into the air and the basketball will stay on the ground.

## 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.

## What happens to the momentum when two objects collide?

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.

## What would happen if two vehicles collide?

Without gravity, colliding cars would bounce off one another softly like beach balls. … With gravity, mass and acceleration combine to pack an enormous wallop.

## Is collision between billiard ball perfectly elastic?

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.

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## What happens in a completely inelastic collision?

A perfectly inelastic collision occurs when the maximum amount of kinetic energy of a system is lost. In a perfectly inelastic collision, i.e., a zero coefficient of restitution, the colliding particles stick together. In such a collision, kinetic energy is lost by bonding the two bodies together.

## Is a car crash an inelastic collision?

An inelastic collisions occurs when two objects collide and do not bounce away from each other. Momentum is conserved, because the total momentum of both objects before and after the collision is the same. However, kinetic energy is not conserved. … A high speed car collision is an inelastic collision. 