Question

A particle is moving along a circle such that is the complete one revolution in 40 second in 2 minute and 20 seconds the ratio of displacement and the distance is

Answer 1

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!!

!