Question

A particle is moving a long a circular path of radius R, then what will be the displacement and distance travelled by the particle after it completes quarter revolution?

Answer 1

$<marquee direction=up behaviour=alternate height=100> Displacement is the shortest distance travelled from the initial point to the final point . After half revolution the displacement is the length of the diameter which is equal to 2r . Hence the displacement is 2r .$

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