Quantities speed of the blade (in feet per second)

height of the blade above ground (in radii)

speed of the blade (in radians per second)

height of the horizontal diameter of the fan above the ground (in radii)

height of the blade above the horizontal diameter of the fan (in feet)

angle measure rotated from the 3 o'clock position (in radians)

height of the blade above the horizontal diameter of the fan (in radii)

height of the horizontal diameter of the fan above the ground (in feet)

height of the blade above ground (in feet)

number of seconds elapsed since windmill started rotating

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