Conservation of momentum and springs

In summary, the conversation discusses the behavior of a Newton's cradle with a series of pins and the effect of adding springs to the system. It is suggested that springs will not accurately simulate the behavior and that the system will act more like a collection of coupled oscillators. The possibility of using selective plates to pass energy through the system is also mentioned.
  • #1
EMUGOD
1
0
I apologize if this is a silly question, but i swear it is not a homework assignment (or, it may be to someone somewhere, but that is no the reason i am interested in it).

If you have a number of pins suspended through vertical platters such that they just touch, they will exhibit the behavior of a Newtons cradle, correct? In terms of intermediary pins remaining stationary and the energy just passing through them?

If so, what affect will springs have on the system? I have included a diagram of what i think the situation will be but am not sure. will the intermediary pins still remain stationary, with the final pin being pushed out? And the combined force of the springs will be lost from the overall force at the end of the system?

I am trying to develop a way to pass this energy through a series of selective plates. At first i was considering just making the originator pin long enough to reach through and having the plates block it, but i fear that will result in damage or very rapid wear. Instead i am thinking of this system, where a lack of a proceeding pin will break the connection. Again i apologize if this is not the intention of this forum.
 

Attachments

  • psychicsq.JPG
    psychicsq.JPG
    17.4 KB · Views: 470
Physics news on Phys.org
  • #2
I don't think that putting the springs in will simulate the Newton's cradle behavior. A similar situation was discussed here. The gist of it is this: When there is an infinitesimally small gap between the colliding objects, the transfer of energy is instantaneous so one mass comes to rest and the other acquires all the energy. If you put in springs, they will store some of the energy as they stretch and compress and the system will act more like a collection of coupled oscillators than Newton's cradle.
 

FAQ: Conservation of momentum and springs

What is the conservation of momentum?

The conservation of momentum is a fundamental principle in physics that states that the total momentum of a closed system remains constant over time, unless acted upon by an external force. This means that the total momentum before and after an interaction between objects must be the same.

How does momentum relate to springs?

In a system involving springs, momentum is conserved when the total momentum of the system before and after a spring interaction remains constant. This means that if one object gains momentum, another object in the system must lose an equal amount of momentum.

What is Hooke's Law and how does it relate to springs?

Hooke's Law is a principle that describes the relationship between the force applied to a spring and the resulting displacement of the spring. It states that the force applied to a spring is directly proportional to the amount of displacement it undergoes. This is important in conservation of momentum as it helps determine how much momentum is transferred between objects during a spring interaction.

Can the conservation of momentum be violated?

No, the conservation of momentum is a fundamental law of physics and cannot be violated. It has been proven to hold true in all observed physical interactions, from microscopic particles to large-scale systems.

How is the conservation of momentum applied in real-world situations?

The conservation of momentum has a wide range of applications in fields such as engineering, astronomy, and sports. For example, it is used in designing car safety features, understanding the motion of celestial bodies, and analyzing the movement of athletes in sports like gymnastics and figure skating.

Similar threads

Replies
53
Views
3K
Replies
36
Views
15K
Replies
2
Views
1K
Replies
3
Views
1K
Replies
3
Views
2K
Replies
12
Views
1K
Back
Top