If an object at rest is acted upon by an inside force, it will begin to move. The inside force will cause the object to accelerate in the direction of the force. The acceleration will continue until the inside force is removed or until the object encounters another force that opposes its motion.

If an object in motion is acted upon by an inside force, its motion will be affected in some way. The inside force may cause the object to accelerate, decelerate, or change direction. The exact effect of the inside force will depend on the magnitude and direction of the force and on the mass of the object.

For example, if a person pushes on a stationary car, the car will begin to move. The force applied by the person is an inside force. The acceleration of the car will depend on the strength of the person's push and on the mass of the car.

If a person pushes on a car that is already moving, the car will accelerate in the direction of the push. The acceleration of the car will depend on the strength of the person's push, on the mass of the car, and on the car's original velocity.

If a person pushes on a car that is moving in the opposite direction, the car will decelerate. The deceleration of the car will depend on the strength of the person's push, on the mass of the car, and on the car's original velocity.

In general, the effect of an inside force on an object depends on the following factors:

* The magnitude of the force

* The direction of the force

* The mass of the object

* The original velocity of the object