Force

A net force is the sum of all forces acting on an object.

When forces are in opposite directions, the forces are subtracted from each other and the direction of the net force will be in the direction of the greater force

When forces are in the same direction, the forces are added to each other in that direction.

When the net force is 0, the force is called balanced and there is no change in motion. **Note, an object moving at constant speed has a net force of 0.

When the net force is not 0, the force is unbalanced and there will be a change in motion. This can be considered an acceleration.