Quietm02 t1_je9e5e7 wrote on March 30, 2023 at 11:27 AM

Reply to comment by bureau44 in eli5 What would happen if I had a big enough airplane to throw a ball around then the airplane turns while the ball is in mid air? by the_lost_cheeto

You're right it won't. The short answer is that adding velocity together is an approximation that only works for low speeds. It doesn't work when you get near the speed of light.

This link explains better than I can https://galileo.phys.virginia.edu/classes/252/adding_vels.html