Question 809974: Find the linear velocity of the tip of the second hand of the clock if the hand is 30 mm long. Found 2 solutions by TimothyLamb, Alan3354:Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! C = 2*pi*r = 2*pi*(30/1000 meters)~= 0.1884955 meters
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length of 1-second segment on clock face:
C/60 ~= 3.1415927E-3 ~= 0.0031415 meters
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s = d / t
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linear speed of the clock's second hand:
(C/60)meters /(1 second) ~= 0.0031415 m/sec
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You can put this solution on YOUR website! Find the linear velocity of the tip of the second hand of the clock if the hand is 30 mm long.
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In 1 revolution, it moves 2*pi*30 mm = 60pi mm
That takes 1 minute
Speed = 60pi mm/minute
=~ 188.5 mm/minute
