If the radius of the axle is 7" and the radius of the wheel is 12", what is the mechanical advantage of this wheel and axle configuration?



The mechanical advantage of a wheel and axle is the input radius divided by the output radius. In this case, the input radius (where the effort force is being applied) is 7 and the output radius (where the resistance is being applied) is 12 for a mechanical advantage of 7/12

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