SOLUTION: Clocks: Suppose the second hand on a clock is 3 inches long. Find the linear velocity of the tip of the second hand.

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Question 702796: Clocks: Suppose the second hand on a clock is 3 inches long. Find the linear velocity of the tip of the second hand.
Found 2 solutions by Alan3354, josmiceli:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Clocks: Suppose the second hand on a clock is 3 inches long. Find the linear velocity of the tip of the second hand.
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1 rev/minute
= 2*pi*3 = 6pi in/min

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The tip of the second hand makes a complete circle in
+60+ sec, or
+1+ min
The length of this circle is the circumference, +C+
+C+=+2%2Api%2Ar+
Given: +r+=+3+ in
+C+=+2%2Api%2A3+
+C+=+6%2Api+
The linear velocity is
+%28+6%2Api+%29+%2F+1+=+6%2Api+ inches / min
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If you want the answer in inches/hr,
+1+ min = +1%2F60+ hr
+%28+6%2Api+%29+%2F+%281%2F60%29+=+360%2Api+ inches / hr