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In military science, force multiplication or a force multiplier is a factor or a combination of factors that gives personnel or weapons (or other hardware) the ability to accomplish greater feats than without it. The expected size increase required to have the same effectiveness without that advantage is the multiplication factor.
is also known as the 'force factor' because the force on the coil imposed by the magnet is multiplied by the current through the coil. The higher the B × l {\displaystyle B\times l} product, the larger the force that is generated by a given current flowing through the voice coil.
Sometimes military victories against the odds are achieved because the larger force is caught unexpectedly, where the smaller force has surprised the larger force giving it an advantage. In some cases, Cormac O'Brien noted in Outnumbered and Outgunned , that complacency is a factor since the larger force is unprepared for a serious battle ...
The normal force, for example, is responsible for the structural integrity of tables and floors as well as being the force that responds whenever an external force pushes on a solid object. An example of the normal force in action is the impact force on an object crashing into an immobile surface.
In engineering, a factor of safety (FoS) or safety factor (SF) expresses how much stronger a system is than it needs to be for an intended load.Safety factors are often calculated using detailed analysis because comprehensive testing is impractical on many projects, such as bridges and buildings, but the structure's ability to carry a load must be determined to a reasonable accuracy.
A contact force is any force that occurs because of two objects making contact with each other. [1] Contact forces are very common and are responsible for most visible interactions between macroscopic collections of matter. Pushing a car or kicking a ball are some of the everyday examples where contact forces are at work.