the seconds hand of the clock is 14 cm long the average speed of the tip of the seconds hand in 15 seconds is how many cm/s?
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Perimeter of clock = 2πr
= 2 × 22/7 × 14 = 88cm
Perimeter = 88cm
Length of 1 sec = 88/60 = 22/15 cm
Distance covered by Second Hand in 15 sec =
15 × 22/15 = 22 cm
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