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An athlete completes one round of a circ...

An athlete completes one round of a circular track of radius 10 m in 40 s . The distance covered by him in 2 min 20 s is

A

70 m

B

140 m

C

110 m

D

220 m

Text Solution

Verified by Experts

The correct Answer is:
D
T = 40 sec
Number of revolutions `=140/40 = 3.5` Rev
distance = `3.5 xx 2piR = 3.5 xx 2pi xx 10 = 220`m
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