Final answer:
A force can make a stationary object start moving by overcoming its inertia. In the case of a moving object, a force can change its direction without stopping it.
Step-by-step explanation:
When a force is applied to an object that is not moving, it can cause the object to start moving. This is because the force overcomes the inertia of the object, which is the resistance to change in motion. For example, if you push a stationary car, the force you apply can cause the car to start moving.
On the other hand, if a force is applied to a moving object, it can change the direction of the object without necessarily stopping it. The force will cause the object to deviate from its original path and follow a new trajectory. For instance, if you kick a soccer ball that is already moving, the force of your kick can make it change direction.
Learn more about How forces affect the motion of objects