Introduction to Classical Mechanics · Problem 3.52
Using F = ma — Morin
Physics — Mechanics · projectile_motion
Problem
Increasing distance **
(a) What is the maximum angle at which you can throw a ball so that its distance from you never decreases during its flight?
(b) This maximum angle equals the minimum θ from Exercise 3.51. Explain why this is true. (It isn't necessary to have done that exercise.)