What fraction of the object's kinetic energy is lost during a single collision?

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SUMMARY

The discussion focuses on calculating the fraction of kinetic energy lost during a collision involving an object with a coefficient of restitution of 0.59. The relevant formula for kinetic energy is KE = 1/2mv^2, and the relationship between final and initial velocities is defined by the coefficient of restitution. The final kinetic energy can be expressed as K_final = 1/2m(v_initial * 0.59)^2. By substituting this into the kinetic energy equation, the fraction of kinetic energy lost can be determined as K_initial - K_final.

PREREQUISITES
  • Understanding of kinetic energy calculations using KE = 1/2mv^2
  • Familiarity with the concept of the coefficient of restitution
  • Basic knowledge of algebra for manipulating equations
  • Concept of energy conservation in collisions
NEXT STEPS
  • Calculate the fraction of kinetic energy lost using the coefficient of restitution.
  • Explore the implications of different coefficients of restitution on energy loss.
  • Learn about elastic vs. inelastic collisions and their energy characteristics.
  • Investigate real-world applications of the coefficient of restitution in sports and engineering.
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Students studying physics, particularly those focusing on mechanics and energy conservation, as well as educators looking for practical examples of collision dynamics.

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Homework Statement



The coefficient of the restitution of an object is defined as the ratio of its outgoing to incoming speed when the object collides with a rigid surface. For an object with a coefficient of 0.59, what fraction of the object's kinetic energy is lost during a single collision?

Homework Equations



KE = 1/2mv^2
kinetic friction coefficient = Fkinetic/Fnormal

The Attempt at a Solution



I am so confused... I hate these problems where the information isn't given to solve for something,someone point me in the right direction please
 
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Coefficient of restitution:

\frac{v_{final}}{v_{initial}}=0.59

You are looking for

\frac{K_{final}}{K_{initial}}

The information you need is given.
 

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