# A barbell is mounted on a nearly frictionless axle through its center. The low-mass rod has...

###### Question: A barbell is mounted on a nearly frictionless axle through its center. The low-mass rod has a length d= 0.16 m, and each ball has a mass m = 0.1 kg. At this instant, there are two forces of equal magnitude F applied to the system as shown, with the directions indicated, and at this instant the angular velocity is 60 radians/s, counterclockwise, and the angle a = 20 degrees. In the next 0.003 s, the angular momentum relative to the center increases by an amount 5 x 104 kg.mp/s. What is the magnitude of each force? N m

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