An athlete completes 1 round of circular track of diameter 200 metres in 40 sec. What will be the distance and displacement at the end of 2min20 sec.??
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distance covered= pi×diameter× time given/ T
where T= time period
=>. 3.14×200×140/40
= 3.14×700
= 2198 meter
number of revolution = t/T= 140/40
= 3.5 this indicates that athlete reached at the half of it's initial position in 2 minutes and 20 seconds
therefore
displacement = length of diameter= 200 meter
=
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