The conversation between human and AI assistant.
Imagine a 747 is sitting on a conveyor belt, as a runway. The conveyor belt is moving in the opposite direction. Can the plane take off?
Hmm, I'm not sure. What's the answer?
The ball will continue moving forward in the direction you threw it, just like the plane would continue moving forward despite the conveyor belt's movement. The train's motion doesn't affect the ball's inertial motion. It's called the principle of inertia!