Billiards Ball Motion: Understanding 2D Motion

What is the motion of billiards ball?

The motion of a billiards ball is a 2D motion, also known as planar motion. When a billiards ball is hit by the billiards stick, it can move back and forth and side to side. What restricts the motion of a billiards ball?

The motion of a billiards ball is constrained to only one plane, making it a two-dimensional motion. This means that the movement of the billiards ball on the table is restricted to a flat surface and does not involve movement in the third dimension.

When a billiards ball is hit by the billiards stick, the direction of the stick restricts the motion of the ball. The force acting on the ball has two components: the normal reaction force (N) acting normally on the surface, and the frictional force (F) acting parallel to the surface. The sum of these two forces gives the net or total force (T) acting in the spray direction.

This restriction to 2D motion allows for precise and strategic gameplay in billiards. Players must carefully consider the angles and forces involved in order to make successful shots. Understanding the 2D motion of billiards balls is essential for mastering the game.