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Q.

Choose the one which describes uniform circular motion.

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a

The movement of a watch's second hand.

b

The motion of a passenger cabin on a massive wheel.

c

The movement of clothes in a washing machine dryer.

d

The movement of a car around a curve on a highway.

answer is A.

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Detailed Solution

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Circular motion is the movement of an object around the circumference of a circle or the rotation of an object around a circular path. A force acts at right angles to the particle's velocity indefinitely.

Uniform circular motion refers to circular motion in which the particle's speed remains constant. Force provides centripetal acceleration in a uniform circular motion.

The movement of a watch's second hand is an example of uniform circular motion, as demonstrated above. 

A giant wheel's motion is rotatory because all of the objects within the wheel move in a circular fashion in the same direction around a fixed axis.


 

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