Describe the motion of an object under no net force.

An object under no net force will either remain at rest or continue moving at a constant velocity.

In more detail, this concept is a fundamental principle in physics, known as Newton's first law of motion or the law of inertia. According to this law, an object will continue in its current state of motion unless acted upon by an unbalanced force. If the net force acting on an object is zero, this means that there are either no forces acting on it, or all the forces that are acting on it are balanced. In either case, the object's state of motion will not change.

If the object is at rest, it will remain at rest. This is often observed in everyday life. For example, a book lying on a table will stay there until someone or something moves it. The forces acting on the book, such as gravity pulling it downwards and the table pushing it upwards, are balanced, so the book does not move.

If the object is already moving, it will continue to move at the same speed and in the same direction. This is known as moving with a constant velocity. For instance, if a spacecraft is moving in the vacuum of space, far from any planets or stars, it will keep moving at the same speed and in the same direction. This is because there are no forces acting on it to slow it down or change its direction.

However, it's important to note that in the real world, it's rare for an object to experience no net force for any length of time. Most objects are subject to various forces such as gravity, friction, or air resistance. These forces can slow down, speed up, or change the direction of an object's motion. But the principle of no net force provides a useful theoretical model to understand the basic laws of motion.