Forces don't "change directions" on their own.
* Forces act on objects. The direction of a force is determined by how it acts on the object.
* An object's motion can change direction. This is usually caused by a *net force* acting on it, pushing or pulling it in a different direction.
Examples:
* A ball rolling across the floor: The force of friction acts in the opposite direction of the ball's motion, slowing it down.
* A car turning a corner: The force of the steering wheel acts on the wheels, causing the car to change direction.
* An object in freefall: The force of gravity acts downwards, but the object's motion can be affected by air resistance, which acts in the opposite direction.
So, the answer depends on what you're asking! If you can clarify your question, I can provide a more specific answer.
