# Conservation of Momentum & Quantity of Motion: Examples Needed

• nebbione
In summary, conservation of momentum is a fundamental principle in physics that states the total momentum of a system remains constant unless acted upon by an external force. Quantity of motion, also known as momentum, is a measure of an object's motion and is calculated by multiplying an object's mass by its velocity. Everyday life examples of conservation of momentum include riding a bicycle and sudden braking in a car. When two objects with different masses collide, the object with the greater mass will experience a smaller change in velocity compared to the smaller object due to the conservation of momentum.

#### nebbione

Hi everyone! I need some examples about Conservation of the quantity of motion and of the momentum of the quantity of motion to verify that these physical quantities are conserved in isolated environment.

Sorry for my bad english

What do you mean by "quantity of motion"?

## 1. What is conservation of momentum?

Conservation of momentum is a fundamental principle in physics that states that the total momentum of a system remains constant unless acted upon by an external force. In other words, in a closed system, the total momentum before an event is equal to the total momentum after the event.

## 2. What is quantity of motion?

Quantity of motion, also known as momentum, is a measure of an object's motion. It is calculated by multiplying an object's mass by its velocity. The greater the momentum, the harder it is to stop the object's motion.

## 3. Can you provide an example of conservation of momentum?

One example of conservation of momentum is a billiard game. When a cue ball strikes a stationary ball, the cue ball's momentum is transferred to the stationary ball, causing it to move. However, the total momentum of the system (cue ball and stationary ball) remains constant.

## 4. How does conservation of momentum apply to everyday life?

Conservation of momentum applies to everyday life in many ways. For example, when riding a bicycle, the wheels have a rotational momentum that helps to keep the bike balanced and moving forward. When a car brakes suddenly, the passengers are pushed forward due to the conservation of momentum.

## 5. What happens when two objects with different masses collide?

When two objects with different masses collide, the object with the greater mass will experience a smaller change in velocity compared to the smaller object. This is because the momentum of the smaller object is transferred to the larger object, resulting in a smaller change in velocity but equal change in momentum for both objects.