Answer to Question #5132 in Mechanics | Relativity for Jason Ranak
The pedals of a bicycle rotate in a circle with a diameter of 50cm. What is the maximum torque a 75kg rider can apply by putting all of her weight on one pedal?
The rider applies a force F = mg when she puts all the weight on the pedal. Using the formula: torque = r*F, where r is the distance from the axis (radius = d/2), we get: torque = m*g*d/2 = 75*9.8*0.5/2 = 183.75 (H*m).