The height of a spring loaded pen

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SUMMARY

The discussion centers on calculating the height a spring-loaded pen can reach when released from a desk. Key formulas mentioned include the potential energy of the spring, expressed as PE = 0.5kx², and the gravitational potential energy, represented by the equation ½*k*x² = m*g*h. The user, James, seeks clarification on how to apply these equations to determine the height based on the pen's mass and spring constant.

PREREQUISITES
  • Understanding of Hooke's Law and spring constants (F = kx)
  • Basic knowledge of energy conservation principles
  • Familiarity with gravitational potential energy (PE = mgh)
  • Ability to manipulate algebraic equations
NEXT STEPS
  • Research the concept of spring constants and how to measure them
  • Learn about energy conservation in mechanical systems
  • Explore practical applications of Hooke's Law in engineering
  • Investigate the effects of mass on the height achieved by spring-loaded mechanisms
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Students in physics, engineers working with mechanical systems, and anyone interested in the dynamics of spring-loaded devices.

jamesd2008
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Hi, you no those pens, that you have to push the top down, which is loaded with a spring to use? Well I was wondering if I released it on my desk how high would the pen travel?

I know that the spring PE=0.5kx^2 and the the spring force is F=Kx, but not sure were to go from there?

Thanks James
 
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Energy conservation:

½*k*x² = m*g*h

where m is mass of the pen.
 

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