Examples of net force in the following topics:

 If a charged particle's velocity is parallel to the magnetic field, there is no net force and the particle moves in a straight line.
 There are many cases where a particle may experience no net force.
 Or there could be two or more forces on the particle that are balanced such that the net force is zero.
 If the net force on a particle is zero, then the acceleration is necessarily zero from Newton's second law: F=ma.
 If the acceleration is zero, any velocity the particle has will be maintained indefinitely (or until such time as the net force is no longer zero).

 The first condition of equilibrium is that the net force in all directions must be zero.
 That is, the net force and net torque on the object is zero in all directions.
 Note that if net $F$ is zero, then the net external force in any direction is zero.
 There are horizontal and vertical forces, but the net external force in any direction is zero.
 There are horizontal and vertical forces, but the net external force in any direction is zero.

 In equilibrium, the net force and torque in any particular direction equal zero.
 so objects with constant velocity also have zero net external force.
 If no net force is applied to the object along the xaxis, it will continue to move along the xaxis at a constant velocity, with no acceleration .
 A moving car for which the net x and y force components are zero
 Determine the net force and the net torque for an object in equilibrium

 In this simple onedimensional example, without knowing the direction of the forces it is impossible to decide whether the net force is the result of adding the two force magnitudes or subtracting one from the other.
 When two forces act on a point particle, the resulting force or the resultant (also called the net force) can be determined by following the parallelogram rule of vector addition: the addition of two vectors represented by sides of a parallelogram gives an equivalent resultant vector which is equal in magnitude and direction to the transversal of the parallelogram.
 Ideally, these diagrams are drawn with the angles and relative magnitudes of the force vectors preserved so that graphical vector addition can be done to determine the net force.
 Forces are resolved and added together to determine their magnitudes and the net force.
 Determine how to derive net force from the parallelogram rule of vector addition

 The workenergy theorem states that the work done by all forces acting on a particle equals the change in the particle's kinetic energy.
 The work W done by the net force on a particle equals the change in the particle's kinetic energy KE:
 where vi and vf are the speeds of the particle before and after the application of force, and m is the particle's mass.
 The relationship between the net force and the acceleration is given by the equation F = ma (Newton's second law), and the particle's displacement d, can be determined from the equation:
 The work of the net force is calculated as the product of its magnitude (F=ma) and the particle's displacement.

 The second law states that the net force on an object is equal to the rate of change, or derivative, of its linear momentum.
 The laws form the basis for mechanics—they describe the relationship between forces acting on a body, and the motion experienced due to these forces.
 The first law of motion (covered in a previous Atom) defines only the natural state of the motion of the body (i.e., when the net force is zero).
 The second law of motion states that the net force on an object is equal to the rate of change of its linear momentum.
 It states: the net force on an object is equal to the rate of change of its linear momentum.

 An object is said to be in equilibrium when there is no external net force acting on it.
 In both cases – static or dynamic – net external forces and torques are zero.
 A body is said to be in mechanical equilibrium when net external force is equal to zero and net external torque is also zero.
 Since there is no net force on the object, the object does not accelerate.
 In the second type, the object has a velocity, but since there are no net forces acting on it, the velocity remains constant.

 Newton's laws of motion describe the relationship between the forces acting on a body and its motion due to those forces.
 First law: If an object experiences no net force, then its velocity is constant: the object is either at rest (if its velocity is zero), or it moves in a straight line with constant speed (if its velocity is nonzero).
 For example, if you don't push the car (no force), then it doesn't move.
 Second law: The acceleration a of a body is parallel and directly proportional to the net force F acting on the body, is in the direction of the net force, and is inversely proportional to the mass m of the body:
 Third law: When a first body exerts a force F1 on a second body, the second body simultaneously exerts a force F2 = −F1 on the first body.

 Net force affects the motion, postion and/or shape of objects (some important and commonly used forces are friction, drag and deformation).
 We know that a net force affects the motion, position and shape of an object.
 Another interesting force in everyday life is the force of drag on an object when it is moving in a fluid (either gas or liquid).
 Like friction, the force of drag is a force that resists motion.
 It omits the two vertical forces—the weight of the barge and the buoyant force of the water supporting it cancel and are not shown.

 Force can also be described by intuitive concepts such as a push or pull.
 A force has both magnitude and direction, making it a vector quantity.
 The original form of Newton's second law states that the net force acting upon an object is equal to the rate at which its momentum changes.
 This law is further given to mean that the acceleration of an object is directly proportional to the net force acting on the object, is in the direction of the net force, and is inversely proportional to the mass of the object.
 Dynamics is the study of the forces that cause objects and systems to move.