Block and Spring Problem: Solving for Compression and Height

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SUMMARY

The discussion centers on solving two physics problems involving a falling block and a spring. The first problem involves a 2kg block falling at 20 m/s from a height of 18 meters onto a spring with a spring constant of 4134 N/m. The goal is to determine the compression of the spring. The second problem requires calculating the height the block will rise after leaving the spring. The conservation of energy principles are essential for solving these problems.

PREREQUISITES
  • Understanding of conservation of energy principles in physics
  • Familiarity with spring constants and Hooke's Law
  • Knowledge of kinetic and potential energy calculations
  • Basic problem-solving skills in mechanics
NEXT STEPS
  • Calculate spring compression using the formula: \( \frac{1}{2} k x^2 = mgh \)
  • Learn about energy conservation in elastic collisions
  • Explore the relationship between potential energy and kinetic energy in mechanical systems
  • Investigate different spring constants and their effects on compression
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Students studying physics, particularly those focusing on mechanics, as well as educators looking for examples of energy conservation in real-world applications.

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Homework Statement


I. A 2kg block is falling at a speed of 20 m/s and is 18 meters above the spring. The spring constant is 4134 N/m, to the nearest tenth of a cm how far is the spring compressed?

II. In the previous problem to the nearest hundredth of a meter to what height will the block rise after it hits and leaves the spring?

Can I get some direction on this problem? It really stumps me. I know the first one will lead to the second answer.
 
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I have a similar problem that I am working on as well. I have a 2.0kg block dropped 48 cm onto a spring with a k(s) of 1600 J/m^2. I worked the first part of the problem to determine the potential energy(gravity) and kinetic energy before the block hit the spring. Now I am trying to work on the 2nd part to determine compression.

Does this help?
 

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