A trajectory is the path that an object follows as it moves through space and time. This can include anything from a thrown ball to a spaceship.
When we talk about trajectories, we usually think of objects like missiles or rockets. But the idea applies to any moving thing - even you! If you're on a journey to visit your friends across town, your trajectory is the route you take to get there. It's the path that your car, bus, or bike follows as it moves through the streets and roads. Even if you get lost, you can still try to correct your trajectory and head back in the right direction. In science, particularly physics and engineering, trajectories are studied to understand how objects will move under different conditions - like gravity or air resistance.
The path an object takes as it moves.
