# Net Force

In physics, net force is the overall force acting on an object. In order to perform this calculation the body is isolated and interactions with the environment or constraints are introduced as forces and torques forming a free-body diagram.

The net force does not have the same effect on the movement of the object as the original system forces, unless the point of application of the net force and an associated torque are determined so that they form the resultant force and torque. It is always possible to determine the torque associated with a point of application of a net force so that it maintains the movement of the object under the original system of forces.

With its associated torque, the net force becomes the resultant force and has the same effect on the rotational motion of the object as all actual forces taken together. It is possible for a system of forces to define a torque-free resultant force. In this case, the net force when applied at the proper line of action has the same affect on the body as all of the forces at their points of application. It is not always possible to find a torque-free resultant force.

### Other articles related to "net force, force, forces":

Net Force - Usage
... The resultant force and torque can be determined for any configuration of forces ... authors do not distinguish the resultant force from the net force and use the terms as synonyms ...
Tom Clancy's Net Force - Main Characters
... Commander Alex Michaels Promoted to top spot in Net Force in the first book, resigns in "Changing of the Guard" played by Scott Bakula in the NetForce TV movie ... Julio Fernandez Friend of John Howard, also in Net Force's military unit Commander Thomas Thorn Took over the top spot in Net Force after Alex Michaels ...
Tension (physics) - System Under Net Force
... A system has a net force when an unbalanced force is exerted on it, in other words the sum of all forces is not zero ... Acceleration and net force always exist together For example, consider the same system as above but suppose the object is now being lowered with an increasing velocity downwards (positive ... There are two forces acting on the body A its weight pulling down, and the tension in the string pulling up ...
Van Der Waals Equation - Derivation - Conventional Derivation
... Next, we introduce a pairwise attractive force between the particles ... Van der Waal assumed that, not withstanding the existence of this force, the density of the fluid is homogeneous ... Further he assumed that the range of the attractive force is so small that the great majority of the particles do not feel that the container is of finite size ...
Tom Clancy's Op-Center - Net Force
... The third Op-Center novel, Games of State, briefly alludes to the concept of a "Net Force" ... This concept was later expanded into its own Net Force series, created by the same men as Op-Center but written by Steve Perry (and later cowritten with Larry ...

### Famous quotes containing the words force and/or net:

The force of the blow depends on the resistance. It is sometimes better not to struggle against temptation. Either fly or yield at once.
—F.H. (Francis Herbert)

it was you untying the snarls and knots,
the webs, all bloody and gluey;
you with your twelve tongues and twelve wings
beating, wresting, beating, beating
your way out of childhood,
that airless net that fastened you down.
Anne Sexton (1928–1974)