Five coins on a table

Classical Mechanics Level 3

Of five identical coins (they are circular), four are placed on vertices of a regular hexagon in above fashion. Left one moves with horizontal velocity \(24\text{ ms}^{-1}\), to collide with coin on bottom edge along the line joining their centers.

Find the magnitude of velocity with which the coin on top-left edge leaves the hexagon (horizontal velocity, to be precise*).

\(\textbf{Details and Assumptions}\)

Consider all surfaces to be smooth.
Consider all collisions to be elastic.
Answer in SI Units.

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 6 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.