In Interstellar, if Cooper and his crew landed on the darker side of Miller's Planet (the side facing away from Gargantua), could they have avoided the giant tidal waves?
Cooper sends the Endurance into a slingshot trajectory around Gargantua. When emerging, he disengages his shuttle from the Endurance. Without thrust, both would have equal velocity, but the Endurance alone moves out of Gargantua's gravity. Is this a violation of Newton's second law?