The nature of the cause of motion varies depending on the specific situation. Forces such as gravity, electromagnetic forces, or contact forces exerted by other objects can act as the cause of motion. These forces influence an object’s acceleration or ...

Yes, according to the principles of classical mechanics, all motions require a cause. Inertia, external forces, or interactions with other objects are typically the causes of motion. Without a cause, an object would remain at rest or continue moving at ...

The speed of an object changes with time due to the presence of external forces acting on it, such as gravity, friction, or applied forces. These forces cause acceleration or deceleration, resulting in changes in speed over time.