Why do we say that needle of a running sewing machine shows periodic motion ? Give reason .
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Why do we say that needle of a running sewing machine shows periodic motion ? Give reason .
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Answer:
The needle of a sewing machine moves up and down and it repeats it with a certain time interval. Therefore it is periodic motion.
Answer:
The needle of a sewing machine moves up and down and it repeats it with a certain time interval. Therefore it is periodic motion