Circular-track pursuit

Overview

On a loop, the faster runner gains one full lap to catch up.

Explanation

On a circular track, catching up usually means gaining an integer number of laps (often one).
If circumference is C, t = C / (v₁ − v₂) when v₁ > v₂.
Relative speed is still the speed difference; only the gap to close is one lap.

How to use

Adjust speeds and scrub time; catch-up when the leader has gained one lap.

Knowledge points

• Functions
• Applications