Question

A particle is moving in a circular path of radius r. what's the distance and displacement of the particle when it completes one revolution?

Answer 1

Hello

When the particle completes one complete revolution, it comes to the same place from where it has started the journey,  So we know that displacement is the shortest path ,  So it’s DISPLACEMENT  will be 0  . Now we know that circumference of a circle with radius ‘ r ‘  is given by = 2πr  So it’s DISTANCE will be 2πr

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