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Vector sum of all forces acting upon a particle or body / From Wikipedia, the free encyclopedia
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In mechanics, the net force is the vector sum of all forces acting on a particle or object. It is a single force that replicates the effect of the original forces on the particle's motion, resulting in the same acceleration as all those actual forces combined, in accordance with Newton's second law of motion.
The associated torque of a net force can be determined, such that it continues the movement of parts of the object under the initial system of forces. This net force, along with its associated torque, becomes the resultant force. It affects the rotational motion of the object similarly to how all actual forces taken together would.[1] In certain scenarios, a system of forces can define a resultant force that is free of torque. Here, the net force, when applied along the correct line of action, replicates the effect of all the forces at their respective points of application. However, it is not always possible to identify such a torque-free resultant force.
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