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Bookmark or Share- 4.1 Force - Physics | OpenStaxAn external force is a force that acts on an object within the system from outside the system. This type of force is different than an internal force, which acts between two objects that are both within the system. The net external force combines these two definitions; it is the total combined external force. We discuss further details about ...
- 4.1: External Forces - Engineering LibreTextsGenerally, external forces include: gravitational force (or weight) normal force; frictional force; spring force; applied force (such as reaction forces & tension) – this also includes applied moments such as from motors
- 5.1 Forces - University Physics Volume 1 | OpenStaxThe resultant of the two forces causes a mass to accelerate—in this case, the third ice skater. This resultant is called the net external force F → net F → net and is found by taking the vector sum of all external forces acting on an object or system (thus, we can also represent net external force as ∑ F → ∑ F →):
- 5.2: Forces - Physics LibreTextsThe resultant of the two forces causes a mass to accelerate—in this case, the third ice skater. This resultant is called the net external force \(\vec{F}_{net}\) and is found by taking the vector sum of all external forces acting on an object or system (thus, we can also represent net external force as \(\sum\vec{F}\)):
- Newton's second law review (article) | Khan AcademyNewton’s second law says that the acceleration and net external force are directly proportional, and there is an inversely proportional relationship between acceleration and mass. For example, a large force on a tiny object gives it a huge acceleration, but a small force on a huge object gives it very little acceleration.
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