Physics of Gun Internals
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| Weapons such as guns have lots of internal
parts and pieces. One of which is the recoil spring as
seen on the top right hand picture. This allows the user
to feel less recoil when getting pushed back (Newton's 3rd
Law) by the bullet exerting a force in one direction and a
recoil force in the opposite. The recoil spring
essentially takes some of that force and dissipates it
instead of the user taking the full load due also to
conservation of energy/momentum. In addition the spring
also allows the slide of the gun to go back into original
position to fire again if needed. |
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| The spring distance (△x) can be decreased by having a higher "spring weight" in other words a larger k, spring constant, can be substituted in the spring potential equation instead of a higher spring distance USpring=(1/2)(k)(. This allows for the gun to be shot quicker because the gun won't recoil as high since a lot of the energy will be absorbed in the spring and not the user, thus it will bring the slide back faster. In addition, once the barrel goes up from the shot, the force of gravity along with the force of the user pushes it down again. Lastly, the spring force can be calculated by using the equation F=(k)(△x) |  |