4 ms·
Follow-up question - after extending the rope by 0.12mm and pulling it up to allow the cat to pass under it, how far away are each of the two points where the r
by davidmanescu 9y ago
Follow-up question - after extending the rope by 0.12mm and pulling it up to allow the cat to pass under it, how far away are each of the two points where the rope lifts off the ground?
- mamon 9y agoHaven't done any calculations but I would guess half of the Earth circumference? because if you want to minimize the length of the rope then you have to maximize distance between those two points.
- tromp 9y agoAs the article explains, these points are about sqrt(2Rh) = sqrt(2 x 6400km x 0.3m) = sqrt(3840000m^2) ~ 1.96km away from the cat.
- davidmanescu 9y agoDid a back of the envelope trigonometry calculation as an approximation, seems to check out :)
- mannykannot 9y agoThat would be the same as the 'how far away is the horizon' calculation at the top of this thread, right? (assuming weightless rope.)