Question

If hands of clock =circular motion then needle of sewing machine =?

Answer 1

If hands of clock =circular motion then needle of sewing machine = Oscillatory motion.
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If an object moves to and fro( in this case up and down) from its mean position then it is said to posses vibratory / Oscillatory motion.

Example motion of a swing in garden.

Answer 2

Answer

IT IS UNFRM MOTION AS TOLD TO ME BY MY TEACHER