University Physics Volume 1 — Mechanics · Problem 39
Units and Measurement — OpenStax
Physics — University · unit-conversion
Problem
Tectonic plates are large segments of Earth's crust that move slowly. Suppose one such plate has an average speed of 4.0 cm/yr. (a) What distance does it move in 1.0 s at this speed? (b) What is its speed in kilometers per million years?