Help With Calculating Spring Constant and Energy in System

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SUMMARY

The spring constant (k) for the system is calculated to be 61.9 N/m based on an 8.0 cm stretch caused by a 500-gram mass. The total mechanical energy in the system is determined to be 0.307 J. The discussion emphasizes the conservation of energy principle, stating that the sum of potential energy (PE) and kinetic energy (KE) equals the total energy at any point during the motion. The user successfully calculated the energy values after receiving guidance on determining PE at a distance of 4.0 cm from the equilibrium position.

PREREQUISITES
  • Understanding of Hooke's Law and spring constants
  • Basic knowledge of energy conservation principles
  • Familiarity with potential energy (PE) and kinetic energy (KE) calculations
  • Ability to perform unit conversions (grams to kilograms)
NEXT STEPS
  • Learn how to calculate potential energy in spring systems
  • Study kinetic energy calculations in dynamic systems
  • Explore the implications of energy conservation in oscillatory motion
  • Investigate the effects of varying mass on spring constant and energy
USEFUL FOR

Students studying physics, particularly those focusing on mechanics and energy systems, as well as educators looking for practical examples of spring dynamics and energy conservation principles.

Ereny
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Homework Statement



a spring stretches 8.0 cm when a 500. grams mass is hung from it.

a. determine the spring constant.the mass is originally pulled 10.0 cm from equilibrium position. calculate the total energy in the system, and the EPE and KE if the distance is 4.0 cm from the equilibrium ?

The Attempt at a Solution



i figured that out and its k= 61.9N/m

i figured the total energy which is .307J but i can't figure out KE and EPE

i really need help guys
 
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Ereny said:

The Attempt at a Solution



i figured that out and its k= 61.9N/m

i figured the total energy which is .307J but i can't figure out KE and EPE

i really need help guys

Remember that energy is conserved throughout the entire motion. So the total will remain constant throughout.

At any point during the motion, the PE+KE = Total Energy.

Can you get the PE when the mass is 4.0 cm from the equilibrium position?
 
Kk thanks I figured it out!
 

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