L I 10 B

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter15: Fluids
Section: Chapter Questions
Problem 1PQ
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A rod of m = 1.3 kg rests on two parallel rails that are L = 0.35 m apart. The rod carries a current going between the rails (bottom to top in the included image) with a magnitude I = 3.4 A. A uniform magnetic field of magnitude B = 0.55 T pointing upward is applied to the region, as shown in the figure. The rod moves a distance d = 0.35 m along the rails in a given time period. Ignore the friction on the rails.

Express the final speed of the rod, v, in terms of F, d, and m, if it started from rest.

Calculate the numerical value of v, in meters per second.

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