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10 Nov 2019

A barbell is mounted on a nearly frictionless axle through itscenter. The low-mass rod has a length d =0.31 m, and each ball has a mass m =0.5 kg. At this instant, there are two forces of equalmagnitude F applied to the system as shown in thefigure, with the directions indicated, and at this instant theangular velocity is 109 radians/s, counterclockwise,and the angle θ = 29°. In the next0.006 s, the angular momentum relative to the centerincreases by an amount 4.8 × 10−4 kg ·m2/s. What is the magnitude of each force?

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Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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