What angle do the springs make with the vertical at equilibrium?

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SUMMARY

The discussion centers on calculating the angle that two horizontal springs make with the vertical when a 5.0 kg mass is supported against gravity at equilibrium. The relevant equation discussed is the potential energy stored in the springs, represented as 1/2kx^2, which is compared to gravitational potential energy, mgh. Participants emphasize the importance of understanding equilibrium in terms of force balance rather than energy considerations, indicating that the angle can be derived from the geometry of the spring system and the height difference.

PREREQUISITES
  • Understanding of Hooke's Law and spring constant (k)
  • Knowledge of gravitational potential energy (mgh)
  • Familiarity with equilibrium concepts in physics
  • Basic trigonometry for angle calculations
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  • Study the principles of Hooke's Law and its applications in spring systems
  • Learn about static equilibrium and force balance in physics
  • Explore trigonometric functions to calculate angles in geometric configurations
  • Investigate energy conservation principles in mechanical systems
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Students studying physics, particularly those focusing on mechanics and spring dynamics, as well as educators looking for examples of equilibrium problems involving springs.

Nickluvn
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Homework Statement



A 5.0kg mass held is between two springs of unstretched length 0.1m such that the springs are horizontal. The mass is then released in such a way that it is supported against gravity by these two springs. What angle do the springs make with the vertical at equilibrium?

Homework Equations


1/2kx^2

The Attempt at a Solution


1/2kx^2 is the used in replacement of 1/2mv^2.
what i don't understant is calculating the angle?
 
Last edited:
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Hi Nickluvn! Welcome to PF! :smile:

(try using the X2 icon just above the Reply box :wink:)
Nickluvn said:
1/2kx^2 is the used in replacement of 1/2mv^2.
what i don't understant is calculating the angle?

The springs make a V shape …

you can get the angle from the spring length and the height difference (the "h" in mgh). :wink:
 


Nickluvn said:
What angle do the springs make with the vertical at equilibrium?

Homework Equations


1/2kx^2



The Attempt at a Solution


1/2kx^2 is the used in replacement of 1/2mv^2.
what i don't understant is calculating the angle?

good thinking, but I think you may be using the wrong approach. Think about what the use of the word "equilibrium" implies about the sum of the FORCES. The way I read that question is it is asking you the angle the springs make once the entire system has come to rest (i.e. no longer bouncing, and the use of the word equilibrium).

tiny-tim said:
Hi Nickluvn! Welcome to PF! :smile:

(try using the X2 icon just above the Reply box :wink:)


The springs make a V shape …

you can get the angle from the spring length and the height difference (the "h" in mgh). :wink:


I'm not sure this is an energy problem. Sounds like statics to me. :confused:
 

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