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A clock a minute-hand `10 cm` long. Find the average velocity between `6.00 AM` to `6.30 AM` for the tip of minute-hand.
A. `22/21 cm "min"^(-1)`
B. `2/21 cm "min"^(-1)`
C. `12/21 cm "min"^(-1)`
D. `2/3 cm "min"^(-1)`

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Best answer
Correct Answer - D
average velcity `=("displacement")/("time")`
`=(20 cm)/30`
`=2/3 cm "min"^(-1)`

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