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An old person moves on a semi circulasr track of radius 40.0 m during a moirning walk. If he starts at one end of the track and reaches at the other end, find the distance covered and the displacement of the person.

A

`126` m, `80` m

B

`80` m, `126` m

C

`80` m, `252` m

D

`252` m, `80` m

Text Solution

Verified by Experts

The correct Answer is:
A
`r=40`m
Distance = `pi` r
`=(22)/(7)xx40=3.14xx40`
`=125.60=126` m
Distance = `2r=2xx40=80` m
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