Answers

2015-05-21T23:22:52+05:30
Circumfrence of track=2*22upon7(pi)*r
=2*22upon7*100
=200*22upon7

round travel in 40 secs=1
round travel in 1s=1upon40

round travel in 140 secs=1upon40*140=7upon2

distance travlled in 7upon2 rounds=7upon2*200
=700*22upon7

distance=2200m
displacement=shortest distance b/w starting and final point=200m
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