a boy covers half of a circular track of radius 14m in 10s. find the ratio between average velocity and average speed
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Explanation:
average velocity =displacement / time
displacement = 28m
time = 10 sec
Vav. = 28/ 10 = 2.8m /s
distance = Πr. = 22 * 14 /7 = 44m
time = 10 sec
average speed = 44/10 =4.4 m/s
ratio = 2.8 / 4.4
= 0.6
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