Mass
When an object is at rest, the forces acting upon it are balanced - there are no unbalanced forces.
Gravity.
The two opposing forces acting on an object as it floats in a fluid are buoyancy (upward force exerted by the fluid on the object) and gravity (downward force exerted by the object's weight). At equilibrium, these forces balance each other, causing the object to float.
The forces that act on a stationary object are typically the gravitational force pulling the object down and the normal force exerted by the surface supporting the object.
If two unbalanced forces are exerted in opposite directions, the object will accelerate in the direction of the greater force. The net force will be the difference between the two forces, resulting in motion in the direction of the larger force.
Action-Reaction Forces.
The force exerted on a scale by an object and other forces acting.
an object's mass
When an object is at rest, the forces acting upon it are balanced - there are no unbalanced forces.
Gravity.
However many there are exerted on the object. Usually there is gravity, friction, and another force exerted on the object.
The two opposing forces acting on an object as it floats in a fluid are buoyancy (upward force exerted by the fluid on the object) and gravity (downward force exerted by the object's weight). At equilibrium, these forces balance each other, causing the object to float.
The forces that act on a stationary object are typically the gravitational force pulling the object down and the normal force exerted by the surface supporting the object.
If two unbalanced forces are exerted in opposite directions, the object will accelerate in the direction of the greater force. The net force will be the difference between the two forces, resulting in motion in the direction of the larger force.
Buoyant forces
If the forces acting on an object do not cancel out, it will result in a net force exerted on the object. This net force will cause the object to accelerate in the direction of the larger force. Examples of forces that do not cancel out include unbalanced forces like gravity, friction, and tension.
Action and reaction forces are part of Newton's third law of motion. The action force is the force exerted by one object on another, while the reaction force is the equal and opposite force exerted by the second object on the first object. These forces always occur in pairs and act on different objects.