Journal
REVISTA BRASILEIRA DE ENSINO DE FISICA
Volume 34, Issue 1, Pages -Publisher
SOC BRASILEIRA FISICA
Keywords
impedance; energy transmission; elastic collisions
Funding
- CNPq
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In this work we study the problem of one-dimensional elastic collisions of billiard balls, considered as rigid bodies, in a framework very different from the classical one presented in text books. Implementing the notion of impedance matching as a way to understand efficiency of energy transmission in elastic collisions, we find a solution which frames the problem in terms of this conception. We show that the mass of the ball can be seen as a measure of its impedance and verify that the problem of maximum energy transfer in elastic collisions can be thought of as a problem of impedance matching between different media. This approach extends the concept of impedance, usually associated with oscillatory systems, to system of rigid bodies.
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