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Does Bead B Always Reach d First?

T. Zheng
K. Gonci
M. Imparato
C. Ursulet
K. Donovan
Journal / Anthology

The Physics Teacher
Year: 1995
Volume: 33
Page range: 376-377

Question: Bead A slides along the positive x-axis with an initial speed and reaches position d. Bead B, with the same initial speed, slides along a curved wire beneath the x-axis under the influence of gravity and also reaches the position d as shown in Fig. 1. The path of bead B is a conventional curve such as a semicircle or a parabolic curve. Assuming the frictional force is negligible along both paths, which bead reaches d first?

*Science > Physics > Mechanics