pow:problem1f20
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| pow:problem1f20 [2020/09/28 03:43] – mazur | pow:problem1f20 [2020/10/01 20:46] (current) – mazur | ||
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| + | <box 80% round orange|Problem 1 (suggested by Prof. Matt Brin) (due Monday, September 14)> | ||
| + | A loop of string has fixed length $L$. It is looped around a disk of radius $r$ and | ||
| + | pulled tight at one point so as to form an "ice cream cone" shape as pictured | ||
| + | {{: | ||
| + | but outside the disk. Note that the area of $A$ is zero if either $r=0$ or if $r=L/2\pi$. What value | ||
| + | of $r$ maximizes the area of the region $A$ and what is this maximum value of the area? | ||
| + | |||
| + | </ | ||
| + | This was our warm-up problem but only | ||
| + | two solutions were received, from John Giaccio and Yuqiao Huang, both correct. Both solutions | ||
| + | are similar to the solution discussed in the following link {{: | ||
