Comments on Puzzle #25790: What Physics Concept? #7
By Brian Bellis (mootpoint)
peek at solution solve puzzle
quality: 
difficulty: 
solvability: line & color logic only
peek at solution solve puzzle
quality: difficulty: solvability: line & color logic only
Puzzle Description:
(This puzzle was recovered from the 2016 database crash. Puzzle creators, please edit this puzzle and put the real description here!)
#1: Brian Bellis (mootpoint) on May 8, 2019 [SPOILER]
Conservation of momentum. The vector sum of all the momenta after the collision is equal to the momentum of the cue ball before the collision.#2: Jota (jota) on Aug 23, 2020
Do you think I can now play?#3: Brian Bellis (mootpoint) on Aug 23, 2020
Conservation of momentum. The vector sum of the momenta of all the balls just after the collision is equal to the momentum of the cue ball just before the collision.#4: Bill Eisenmann (Bullet) on May 23, 2021 [SPOILER]
Rack 'em and crack 'em!#5: Web Paint-By-Number Robot (webpbn) on Jun 5, 2021
Found to have a unique solution by valerie.#6: Web Paint-By-Number Robot (webpbn) on Jun 5, 2021
Found to be solvable by line and color logic alone by valerie.#7: Valerie Mates (valerie) on Jun 5, 2021 [SPOILER]
Oh! Until I read comment #1 my mind was trying to make it into a high-tech car key. When I read #1 it popped. Neat!
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