static of the surface
A normal force is a force perpendicular to something - for example, to a surface. This force can be supplied by just about anything; in many cases by gravity.A normal force is a force perpendicular to something - for example, to a surface. This force can be supplied by just about anything; in many cases by gravity.A normal force is a force perpendicular to something - for example, to a surface. This force can be supplied by just about anything; in many cases by gravity.A normal force is a force perpendicular to something - for example, to a surface. This force can be supplied by just about anything; in many cases by gravity.
static of the surface
A surface pushing up, equal and opposite to a force pushing against it
which force are you talking about? Save
Nothing. The relaxed state of the chest is fully exhaled. Breathing out, expiring, is normally accomplished by relaxing the diaphragm and the muscles of the ribs. No force is used. It is possible to exhale forcefully, but the question did not ask that.
Normal force is a type of contact force that is perpendicular to the surface of contact. It is the force that a surface exerts on an object placed on it, acting in a direction perpendicular to the surface.
The force that acts against the gravitational force in the upward direction is typically the normal force. The normal force is the force that a surface exerts on an object in contact with it, pushing against the force of gravity.
The normal force is the force exerted by a surface on an object in contact with it, perpendicular to the surface. It is equal in magnitude and opposite in direction to the force the object exerts on the surface due to Newton's third law.
Pressure is defined as the derivative of normal force with respect to surface area. Pressure is proportional to the normal force, and inversely proportional to the surface area. As the normal force over a surface area varies so does pressure. In the case that pressure is increasing then either the normal force is increasing, the surface area of which the normal force is being exerted is decreasing, or the combination of both of these is occurring.
the normal force
the force that a solid surface exerts on any object in normal direction is called the normal force
that's the "normal force"