What equations are used for coupled pendulums?

  • Thread starter Callum Johnston
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In summary, the conversation discusses using equations such as ∆E = mg∆h, v = √2g∆h', t = 2π√l/g', and f = 1/t to explore the dependent and independent variables of two separate pendulums on a string. However, the system is not fully understood and a diagram is requested for clarification. The speaker also mentions that the situation is similar to one with a spring between the pendulums, with the string acting as the spring at the top.
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Callum Johnston
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This is for just two separate pendulums on a string, not conjoined pendulums or ones with a spring between them. All I can think of is ∆E = mg∆h, v = √2g∆h', t = 2π√l/g' and f = 1/t.
 
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Callum Johnston said:
This is for just two separate pendulums on a string, not conjoined pendulums or ones with a spring between them. All I can think of is ∆E = mg∆h, v = √2g∆h', t = 2π√l/g' and f = 1/t.
I do not understand the system. could you explain the situation with a diagram? Also, what is the question?
 
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What equations could you use to explore the dependant and independent variables if I plan to change the length of the pendulums and the distance between them?
 
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It's the same as with a spring between them. The spring here is essentially the string connecting them at the top.

I suppose you could consider a delay as the perturbation travels from the swinging part to the spring string.
 

FAQ: What equations are used for coupled pendulums?

What is a coupled pendulum?

A coupled pendulum is a system of two or more pendulums that are connected to each other, usually with a spring or a rigid rod. The motion of one pendulum affects the motion of the other pendulums in the system.

What are the equations used for coupled pendulums?

The equations used for coupled pendulums are the equations of motion, which describe the position and velocity of each pendulum in the system. These equations are typically based on Newton's laws of motion and can be solved using techniques such as Lagrangian mechanics or differential equations.

How do you calculate the period of a coupled pendulum?

The period of a coupled pendulum can be calculated using the equation T = 2π√(l/g), where T is the period, l is the length of the pendulum, and g is the acceleration due to gravity. However, for coupled pendulums, the calculation of the period can be more complex and may require numerical methods or analytical approximations.

How does the amplitude affect the motion of coupled pendulums?

The amplitude, or maximum displacement, of a pendulum affects its motion by changing the amount of potential and kinetic energy in the system. A larger amplitude can lead to a longer period and more complex motion, while a smaller amplitude can result in a shorter period and simpler motion.

Can coupled pendulums exhibit chaotic behavior?

Yes, coupled pendulums can exhibit chaotic behavior, especially when the coupling between the pendulums is strong. This means that even small changes in initial conditions can lead to drastically different outcomes, making the system difficult to predict and control.

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