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Two examples are;
1) pendulum of a clock
2)vibrating spring

Motions that repeats in equal intervals of time are said to be periodic.
1 2 1
Examples of periodic motion r :- a rocking chair, bouncing ball, tuning fork , the earth rotating the sun, and etc.
hope this helps u!!!!!!!
2 3 2
Examples of periodic motion include a rocking chair, a bouncing ball, a vibrating guitar string, a swinging pendulum, and a water wave. :)
a cyclist cycling
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