In physics, there is a force that is called the normal force. This is the force that comes from a surface pushing up on an object. If the surface is level, the normal force is the exact same magnitude as the gravitational force, but straight up. The normal force is always perpendicular to a surface. Hope this helps!
buoyant force
The bouyant force acts in an upward direction against gravity. It keeps things from sinking.
A dream, a fantasy (so far).
The upward force is drag.
That force is refereed to as the normal forces. it only applies to objects on a solid surface.
A buoyant force is produced when an object is completely or partially submerged in a fluid at rest .
Buoyancy always acts in the direction opposite to the direction of the gravitational force. We normally consider this direction as 'upward'.
capillary
The bouyant force acts in an upward direction against gravity. It keeps things from sinking.
The buoyant force on an object submerged in a fluid is caused by the pressure difference between the top and bottom of the object. To overcome the gravitational force, the buoyant force acts in the upward direction. The larger pressure at greater depth pushes upward on the object.
As you walk down the stairs, you apply a force to keep yourself from falling down the stairs. The force is in the upward direction, but your movement is in the downward direction. If the force is in the opposite direction of motion, work done by the force is negative. Gravitational force, because it pulls down, does positive work.
If the fluid is not turbulent, then the only forces acting on the bubble are vertical ... the downward gravitational force and the upward buoyant force. Whichever force is the stronger one defines the direction in which the bubble must move.
A dream, a fantasy (so far).
The upward force is drag.
Normal force can act on an object
It is a force which acts in the upward direction.
A buoyant force is produced when an object is completely or partially submerged in a fluid at rest .
That force is refereed to as the normal forces. it only applies to objects on a solid surface.