Question

Which of the following is a suitable word to describe the motion of a rotating ball tied to rope tied tightly to a fixed support?

(a) Spiral motion

(b) Circular motion

(c) Elliptic motion

(d) Uniform motion

This question was addressed to me by my college professor while I was bunking the class.

My query is from Non-Uniform Circular Motion topic in portion Laws of Motion of Physics – Class 11

Answer 1

Correct option is (a) Spiral motion

To elaborate: A ball, tied to a rope, rotating around a fixed support will cause the rope to wind itself around the support. Hence, the motion will be circular with decreasing radius. This motion will cause the path look like a spiral. Hence the motion is spiral in nature.