An athlete completes one round of a circular track of radius R in 40 seconds . What will be his displacement at the end of 2min 20 sec?
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Answer:
2R
Step-by-step explanation:
It is gi given that the athlete complete a round in 40 s
after 2 minutes20 seconds
2min 20sec=140 s
He completes 3.5 rounds in 140 s
displacement =2R
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