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Physics in Action!! Need help on Physics!!!!!? |
How does the length of the pedal arm on a penny-farthing bicycle affect the amount of torqe applied to the front wheel? Torque is also known as moment, and its unit is Nm (Newton meter) The formula: torque = Fd, where F is the applied force d is the distance from the fulcrum to the line of force. Visualize a circle, with the fulcrum as the center. Let its radius be d, and F is a tangent of the circle perpendicular to its radius. As torque = Fd, the longer the length of the pedal arm, the greater the amount of torque applied to the wheel. |
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