Posts filed under ‘The Rope Around the Earth Puzzle’

The Rope Around the Earth Puzzle

Imagine that we can put a long piece of rope around the Earth at the equator just as we can put a short length of string around the circumference of a basketball. Now imagine that we cut the rope and insert another piece exactly one metre in length and arrange this slightly longer piece so that it is at the same uniform distance from the Earth all the way around. What is the size of the gap between the rope and the equator? (We recall that the circumference of a circle is 2 times pi times the radius, where for this problem a value of pi of 3.14 is satisfactory.)

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August 9, 2010 at 2:51 pm 2 comments


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