The fact that a foundational text of theoretical physics was written about a pool game illustrates how perfectly pool balls illustrate physics concepts. An English translation by David Nadler was eventually published (in 2005), making this historic work accessible to modern readers. Coriolis’ book is still so relevant that in the pool physics community, it is often referred to as “ of pool physics”.
Since all billiard balls have nearly identical mass (approx. 170g for a standard 2.25-inch ball), the equation simplifies dramatically. For a straight-on (central) collision, the cue ball stops dead, and the object ball moves forward with the cue ball’s original velocity. For non-central collisions, the balls separate at a right angle—a fact derived from Newtonian mechanics and elastic collision theory. the physics of pocket billiards pdf
When the cue ball hits the object ball, the microscopic friction between them determines the angle of deflection (the "90-degree rule" or "30-degree rule" depending on speed). The fact that a foundational text of theoretical
Disclaimer: Accessing technical books like "The Physics of Pocket Billiards" should be done through legitimate, legal channels, such as university libraries, academic repositories, or the author's official website. Since all billiard balls have nearly identical mass (approx
Because kinetic energy ($\frac12mv^2$) and momentum ($mv$) are conserved, the vector sum of the final velocities equals the initial velocity vector: $$ \vecv_1 = \vecv_1' + \vecv_2' $$