I have added a Newton’s Cradle animation to the animation file posted previously:
The animation finds the correct period for the input string length and starting angle, and displays the movement of the balls in real time.
Recent Comments
Tony on Transfer of arrays to/from Pyt… Suelio Josileissu on Using Redim and 3DFrame 
dougaj4 on 2 more Moves Through the … 
Larry on 2 more Moves Through the … 
Joan Gonzalez on Converting from global to loca… dougaj4 on Time in hours and minutes betw… dougaj4 on Time in hours and minutes betw… 
Jeff Weir on Time in hours and minutes betw… 
Doug Glancy on Time in hours and minutes betw… 2 more Moves Through… on More moves through the fa… 
audeser on Daily Download 9: Animation in… audeser on Daily Download 9: Animation in… audeser on Daily Download 9: Animation in… dougaj4 on Daily Download 9: Animation in… dougaj4 on Reinforced Concrete – UL…
Hi Doug –
Very neat, but Newton seems to have lost his gravity 😉
The balls never come to rest.
…Michael
LikeLike
mrt – they wouldn’t move at all if there was no gravity!
But yes, I did assume no loss of kinetic energy at the collisions, which makes everything much simpler.
Maybe I’ll get around to putting in some collision losses one day, but to do it properly it would mean that after the collision all the balls would have some velocity, so the next collision would not occur exactly at the low point, so I’d have to keep track of the position and velocity of every ball, and check for collisions of every pair of adjacent balls at evey step.
LikeLike
Pingback: By Jingo « Newton Excel Bach, not (just) an Excel Blog