A coir rope is unwound from a drum of 40 mm diameter. Draw the locus of the free end of the rope for unwinding through an angle of $360^{\circ}$. Draw also a tangent and normal at any point on the curve.
Explanation
As the rope unwinds from the drum, the free end traces a circular path. The center of the circle is at the center of the drum, and the radius is equal to the diameter of the drum.
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