Question

what is the difference between rotatory and circular motion ?

Answer 1

hope you will understand the difference with the help of few examples.

When a particle moves in a circle with constant speed, the motion is called uniform circular motion. A car rounding a curve with constant radius at constant speed, a satellite moving in a circular orbit, as we will as an ice skater skating in a circle with constant speed are all examples of uniform circular motion. . . . . . . . . . . . . The translational motion, an object moves from one point to another. Another type of motion occurs when an object moves in a curved path. This type of motion is called rotational motion. Example of rotational motion is all around us. A spinning compact dies, the wheels of a car, as we will as a blowing fan are a few common examples of rotational motion and;Rotational motion may accompany transitional motion, as when a ball rolls down a ramp. It may also occur in the absence of transitional motion, as when a top spins on it is axis. Rotation refers to the circular movement of an object about an axis that passes through the object.

The main difference between these types of motion is that circular motion is a special case of rotational motion, where the distance between the body’s centre of mass and the axis of rotation remains fixed.

In rotatory motion, a body rotates on its own axis (passing through it) while in circular motion, any body/particle moves on a circular path with centre outside the body.

For Example:

If a ceiling fan is running, we say the fan (as a whole) is rotating, while any part of it (like the end of a blade) is moving in a circular path around the central axis.

OR

The earth is rotating around its own axis, while we the humans, the animals, and everything else is undergoing circular motion around the earth’s axis of rotation.