# Which of the following depicts a circular motion?

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Which of the following depicts a circular motion?
1. The tip of the minute-hand of a clock
2. Freefall of stone from the top of a tower
3. An athlete running on a straight track
4. All of the above

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Correct Answer - Option 1 : The tip of the minute-hand of a clock

The correct answer is option 1) i.e. The tip of the minute-hand of a clock

CONCEPT:

• Circular motion: The motion of an object along a circular path is called circular motion.
• A circle is assumed to be a polygon with infinitely many sides such that each side approximates to a point.
• So, an object moving on a circular path undergoes a change in direction at every point.
• Since direction changes at every pointvelocity changes at every point.

EXPLANATION:

• Freefall: It is a type of motion where the object under motion is under the influence of gravitational force only.
• The freefall of stone from the top of a tower follows a straight line path towards the ground.
• An athlete running in a straight track is an example of motion along a straight line.
• The tip of the minute hand of a clock moves along the circumference of a circular path. Hence it is an example of circular motion.