Typically there is the force of gravity pulling an object down, and a force that keeps it up - for example, the floor on which an object is standing pushes it up. There may be additional objects involved.
Forces don't act on other forces - forces act on objects.
The would be balanced forces.
gravity
gravity and drag
Action-Reaction forces act on all matter.
falling objects.
Forces don't act on other forces - forces act on objects.
The two forces are of the same magnitude, act in opposite directions, and act on different objects.
The would be balanced forces.
gravity
gravity and drag
Action-Reaction forces act on all matter.
Is gravity a solid? Physical collisions of solid objects is not the only way that forces can act on solid objects.
Action and reaction forces act on different objects. The forces on one of the objects can still be unbalanced.
That depends. If no forces act on the object, it will. If forces do act on the objects, such forces may change the object's velocity.
The electrostatic forces between two objects that have the same kind of charge act in the direction to push the objects apart.
b. outside forces act on the objects.