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Seconds, anyone? (Posted on 2011-10-03) Difficulty: 1 of 5
How many angular seconds(") covers a seconds hand of an analog watch in one second (sec)?

See The Solution Submitted by Ady TZIDON    
Rating: 5.0000 (1 votes)

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Solution The Answer Comment 2 of 2 |
There are 60*60=3600 seconds in a degree. In a circle, there are 360*3600=1296000 seconds. Therefore, the second hand travels 1296000 seconds in a minute. There are 60 seconds in a minute, so the second hand goes 1296000/60=21600 seconds in a second.

  Posted by Math Man on 2011-10-14 23:45:25
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