Introduction to Classical Mechanics · Problem 11.30
Relativity (Kinematics) — Morin
Physics — Mechanics · a-passing-train
Problem
A train of length 15cs moves at speed 3c/5. How much time does it take to pass a person standing on the ground (as measured by that person)? Solve this by working in the frame of the person, and then again by working in the frame of the train.