The radius of the wheel of a wheel and axle is 4 times the radius of the axle. what is the mechanical advantage of the wheel and axle?

The mechanical advantage of a wheel and axle is defined by:
M.A. = radius of the wheel divided by the radius of the axle.

If we let x = the radius of the axle, then 4x = the radius of the wheel.

From the definition above:


So M.A. = 4

(x) - (y) = (1 + 4i)

(3 + 6i) - (2 + 2i) = (1 + 4i)