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A cyclist moving on a circular track of radius 100m completes half a velocity a revolution in one minute.what is his average velocity |
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Answer» st moving on a circular track of radius 100m. (r = 100 m)Distance complete in ONE revolution = CIRCUMFERENCE of a CIRCLE{ Circumference of circle = 2πr }Distance covered by cyclist = 2 × 22/7 × 100= 4400/7= 628.57 mAlso given that, it completes the one revolution in one minute.Time (t) = 1 MIN = 60 secAverage SPEED = (Total distance)/(Total time)= 628.57/60= 10.47 m/sAverage velocity = (Total displacement)/(Total time)For circular track displacement = 0 m= 0/60= 0 m/sTherefore, the average velocity of the cyclist is 0 m/s. |
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