Introduction to Classical Mechanics · Problem 7.19
Angular momentum, Part I (Constant L) — Morin
Physics — Mechanics · gravity-kepler-laws
Problem
Zero potential **
A particle is subject to a constant potential, which we will take to be zero (equivalently, consider the α≡GMm=0 limit). Following the general strategy in Section 7.4, show that the particle's path is a straight line.