A particle is moving in a circle of diameter 5 m calculate the distance covered when it completes 3 revolution
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diameter = 5m
radius = 2.5m
distance in 1 revolution = 2 (pi) r = 2 * 22/7 * 2.5
distance in 3 revolutions = 3* 22/7* 2* 2.5 (we could take the value of 22/7 as 3.14)
= 3* 3.14* 5 = 9.42* 5 = 47.10
as the body comes back to the same position the displacement is 0
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answer is 47.1 m....
explanation:
d/2=r
3(circumference of the circle)=distance covered
3*2*pi*r=dist.
i.e,15*22/7
dist.=47.1 m
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