AP Physics 2
14.3 Boundary Behavior of Waves and Polarization

In System 1, the end of the string is attached to a ring of negligible mass that slides without friction along the rod. The pulse reflects, reaching a maximum vertical boundary displacement of \(y_1 = 2A\) and retaining mechanical energy \(E_1 = E_0\).
In System 2, the end of the string is attached to a ring of mass \(m\) that experiences kinetic friction as it slides along the rod.
Which of the following correctly compares the maximum vertical displacement of the ring \(y_2\) and the mechanical energy of the reflected pulse \(E_2\) in System 2 to \(2A\) and \(E_0\)?
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