Final answer:
The bullet is the part of the cartridge that travels through the barrel of a firearm and out towards the target, where rifling in the barrel stabilizes it by imparting a spin.
Step-by-step explanation:
The part of the cartridge that travels through the barrel and out towards the target is the bullet. In a firearm, a cartridge consists of a projectile (bullet), propellant (gunpowder), a primer, and a casing that holds them all together. When the gun is fired, the primer ignites the propellant, creating high-pressure gases that propel the bullet down the barrel and out toward the target. Rifling, which is the presence of grooves in the barrel, imparts a spin to the bullet, stabilizing it and increasing accuracy. This spinning motion is crucial in both canons and rifles, hence the term 'rifling' for the grooves inside the barrel. Moreover, in the study of firearms and ballistics, the principles of physics are applied to understand the forces involved, such as the recoil experienced when a gun is fired and the factors that affect the trajectory of the bullet. In a firearm, the part of the cartridge that travels through the barrel and out towards the target is the bullet. The bullet is the projectile that is expelled from the barrel when the firearm is discharged. The bullet is typically located at the tip of the cartridge and is propelled forward by the expanding gases generated by the ignition of the gunpowder or propellant inside the cartridge case. It is important to note that the term "bullet" specifically refers to the projectile, while the entire cartridge includes the bullet, cartridge case, propellant, and primer.