17 Aug '05 17:221 edit

Not sure if this was posted already, but here goes nothin':

Imagine, if you would, a belt wrapped around the Earth along the equator. For the purposes of this puzzle, we'll consider the Earth to be a perfect sphere with a radius of 6371 km. Now:

(1) What is the length of the belt?

(2) If you added 1 km to the length of the belt, and pulled on the belt so that it was taught around the Earth again, how high off the ground would the belt be at the point of pulling?

(EDIT: Changed 1 metre to 1 km in part 2)

Imagine, if you would, a belt wrapped around the Earth along the equator. For the purposes of this puzzle, we'll consider the Earth to be a perfect sphere with a radius of 6371 km. Now:

(1) What is the length of the belt?

(2) If you added 1 km to the length of the belt, and pulled on the belt so that it was taught around the Earth again, how high off the ground would the belt be at the point of pulling?

(EDIT: Changed 1 metre to 1 km in part 2)