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A stationary bicycle is raised off the ground, and its
front wheel (m = 1.3 kg) is rotating at an angular
velocity of 14.4 rad/s (see the drawing). The front
brake is then applied for 3.0 s, and the wheel
slows down to 2.1 rad/s. ASsume that all the mass
of the wheel is concentrated in the rim, the radius
of which is 0.34 m. The coefficient of kinetic
friction between each brake pad and the rim is

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