__ A particle is moving along a circle such that it completes one revolution in 40 sec.__

__ in 2 min 20 sec, the ratio |displacement| /distance is...??? __

Hi! Devika,

Let ‘R’ be the radius of the circular path in meters.

2minutes 20 seconds [(2 60) +20] = 140 seconds

Distance covered in one revolution = 2πR meters.

Time for one revolution = 40s

Distance covered in 3.5 revolutions = 3.5 2πR meters =7πR meters

Displacement in 3.5 revolutions = 2R meters. ( Displacement is the least distance between initial and final positions).

Hopr it is clear to you!!

Cheers!!

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