Explain why the rim brakes on a bicycle wheel are located at the outer edge of the
Question:
Explain why the rim brakes on a bicycle wheel are located at the outer edge of the wheel instead of near the hub. Consider the work–energy theorem (Eq. 9.9) and how the magnitude of the torque produced by a given force varies when the force is applied at different distances from the axis of rotation.
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The workenergy theorem states that the work required to stop the wheels equals the applied torque multiplied by the angular displacement Therefore the larger the torque applied to the wheels the shorter the stopping distance of a bike For a given force the largest torque comes from placing the force as far away from the center of the wheel ...View the full answer
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Related Book For 
College Physics Reasoning and Relationships
ISBN: 978-0840058195
2nd edition
Authors: Nicholas Giordano
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