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anonymous
 5 years ago
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anonymous
 5 years ago
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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0We need to first find the angle that the hand will move, and from there we can convert to time elapsed To find the angle: the line along the circumference is given as 40pi the circumference's total length is 2*pi*r, or 120pi This means that the clock needs to travel 1/3 the length of the clock, or 120degrees 120 degrees relates to 1/3*12 hours = 4 hours. Therefore, the clock will explode at 10 +4 hours, or at 2:00

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no, 40pi/120pi gives you 1/3 of the circle, which is 120 degrees. This only happened because we had a radius of 60cm. If it were different, the degree would be different as well.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how u get 120 degree?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.040pi along the circumference out of 120pi total that's 1/3 of the way along the circumference That means that, out of 360 degrees (one full circle/circumference), we went 1/3 of the way: 1/3*360 = 120

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0http://www.flickr.com/photos/62007598 @N03/5643605247/
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