Conservation of Momentum (Generalized Question)

In summary, the concept of Conservation of Momentum states that in a closed system, the total momentum remains constant over time. The formula for calculating momentum is p = m x v, and it is important in physics because it helps us understand the behavior of objects in motion. This principle is applied in various real-world situations, such as collisions, rocket propulsion, and planetary motion. Some examples of the Conservation of Momentum in action include billiard ball collisions, car crashes, rocket launches, and pendulum swings.
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Homework Statement


Will momentum not be conserved in the case of a free fall because gravity is considered an external force? Is this because the system is not isolated? If this is the case, I understand the concept now, but could someone give me another example of an external force that will impact momentum in a way in which it wouldn't be conserved?

Homework Equations

The Attempt at a Solution

 
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  • #2
Any ball sport. E.g. a system of two tennis players, their rackets and the ball. Perhaps consider only horizontal momentum to take out the effect of gravity.
 

What is the concept of Conservation of Momentum?

The concept of Conservation of Momentum states that in a closed system, the total momentum remains constant over time. This means that the total amount of momentum before an event or interaction is the same as the total amount of momentum after the event or interaction.

What is the formula for calculating momentum?

The formula for calculating momentum is p = m x v, where p is momentum, m is mass, and v is velocity. This formula can be used for both linear and angular momentum.

Why is the Conservation of Momentum important in physics?

The Conservation of Momentum is important in physics because it is a fundamental principle that helps us understand and predict the behavior of objects in motion. It allows us to analyze and describe the motion of objects in terms of their mass, velocity, and forces acting upon them.

How is the Conservation of Momentum applied in real-world situations?

The Conservation of Momentum has many real-world applications, such as in collisions between objects, rocket propulsion, and even the motion of planets in the solar system. It is also used in engineering and design of vehicles, machines, and structures that involve motion.

What are some examples of the Conservation of Momentum in action?

Some examples of the Conservation of Momentum in action include a billiard ball collision, a car crash, a rocket launch, and a pendulum swing. In all of these cases, the total momentum of the system remains constant before and after the event, even though individual objects may experience changes in momentum.

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