Imagine you would have to put a rope around the moon. Since the moon is 1,738,000 metres in diameter, this is a hard task.
Finally you have managed to get the rope around the moon but... it is one meter short.
You decide to dig a groove all around the moon, so that the shorter rope suffices. How deep must this groove be?
(Assume the Moon to be a perfect sphere.)
(In reply to
answer by K Sengupta)
Re-check your unit of measure. The depth should be the equal to 1/(2*pi) meters, which is approximately...
15.915494 centimeters and 0.159155 meters;
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Posted by Dej Mar
on 2008-06-07 12:38:51 |
re: answer
