Newton puzzle solved.

jcoady · Post by **jcoady** » Mon May 28, 2012 5:13 pm

http://www.telegraphindia.com/1120527/j ... 537378.jsp

kcdodd · Post by **kcdodd** » Wed May 30, 2012 9:24 pm

What exactly is newtons puzzle.

KitemanSA · Post by **KitemanSA** » Wed May 30, 2012 10:01 pm

kcdodd wrote:What exactly is newtons puzzle.

Shouryya Ray, a resident of Dresden, has solved a differential equation that addresses a fundamental problem in particle dynamics and may be used to predict the flight path of a ball bouncing off a wall, the German paper Die Welt said.

kcdodd · Post by **kcdodd** » Thu May 31, 2012 12:29 am

Um, is that not a trivial intro physics problem? What equation?

GIThruster · Post by **GIThruster** » Thu May 31, 2012 1:28 am

Its often surprising how difficult a seemingly simple problem can be. The traveling salesman problem is a good example too.

http://en.wikipedia.org/wiki/Travelling ... an_problem

kcdodd · Post by **kcdodd** » Thu May 31, 2012 1:32 am

I have searched around and found what exactly he was doing: drag force (proportional to velocity squared) and uniform gravitational acceleration. And after some others reviewing it apparently it actually has been "solved" before. And by solved, he has a series solution.