Question

The tip of second hand of a clock takes 60 second to move once on the circular dial of the clock be 10.5m/s calculate the speed of the tip of the second hand of the clock . Given(22/7)


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Answer 1

Circumference covered by the clock iscircumference = velocity * time = 10.5 m/s * 60 secs = 630 m
The tip of the second's hand will cover the circumference., that is  = 2πr =2×22/7× radius
2×22/7× radius = 630 mradius  = 100.227 m