A particle is revolving in a circular path of radius 1 by 5 metre its distance after completing two and half rotation is
a.25m
b.5m
c.15
d.30
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Answer:22/7
Given:. R=1/5
Object complete 2 complete rounds and one half round of a cirlce...
Circumference=2πr and half of circumference
So distance=2×22/7×1/5×2+22/7×1/5
•22/7×1/5×5
Answer=22/7
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