Mechanical Advantage

In the case of a simple wheel and axle system, the mechanical advantage (MA) is given by the ratio of the radii of the wheel and the axle. It is typically equal to 1, as both the input and output forces are equal, but the distance over which the forces act may differ. The formula for mechanical advantage in a wheel and axle system is: In a simple case, where the radii are equal, the mechanical advantage is 1.