A particle is moving along a circle such that it completes one revolution in 40 seconds. In. 2 minutes 40 seconds , the ratio |displacement|/distance is

displacement will be equal to 0 as its a revolution 
so..... ANSWER IS 0
 
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Hi jhanvii

As we know that displacement is shortest path.
If particle complete one round in 40s.
Then 60s + 60s + 40s = 160s.
160s/40s that means the particle complete 4 rounds.
That why displacement is 0
And distance is 4 ? 2?r = 8?r
0/8?r = 0.

Thank you.
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