A particle particle moves on a circular path of radius R it completes one revolution in 40 seconds calculate the distance and displacement in 2 minutes 20 seconds
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a particle completes 1 revolution in 40 seconds
in 1 second he will complete 1/40 revolution
2minutes20seconds=140seconds
in 140 seconds he will be able to complete 3.5 revolution
so he would have covered half distance of his fourth revolution
Therefore displacement will be 2r because he had completed the semi circle and diameter will be the displacement
distance=3.5*circumference of circle
distance=3.5*22/7*2r
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