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Question
An athlete completes one round of a circular track of radius R in 80 sec. What will be his displacement at the end of 4 min 60 seconds?
Options
2πR
3πR
`sqrt2 "R"`
Zero
MCQ
Solution
`sqrt2 "R"`
Explanation:
∴ Displacement is line segment AB
AB = `sqrt("R"^2 + "R"^2) = sqrt2 "R"`
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Motion in a Straight Line
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