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Question

"The tip of second hand" of the clock takes 60 s to move once on the circular dial of the clock. If the length of the second hand is 10 cm, calculate the speed of the tip of the second hand clock ?

(π=22/7)

A
0.04 m/s
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B
0.02 m/s
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C
0.01 m/s
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D
0.03 m/s
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Solution

The correct option is C 0.01 m/s
We know that, speed,

v=DistanceTime

v=2πrt

v=2π(0.1)60=0.01 m/s

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