Final answer:
Control of a firearm during trigger manipulation and recoil is often achieved by using recoil-reducing mechanisms in the gun, which can be understood through the conservation of momentum and work-energy principles.
Step-by-step explanation:
Control of the weapon during trigger manipulation and recoil is essential for effective firearm usage. In a military rifle, this is often achieved using a mechanism that reduces the recoil force. To illustrate the physics behind this, we can calculate the recoil using the law of conservation of momentum. When a 0.0200-kg bullet is fired at 600 m/s from a gun, an internal plunger in the gun with a mass of 1.00 kg recoils. The conservation of momentum tells us that the momentum before the shot is equal to the momentum after the shot, which allows us to calculate the recoil velocity of the plunger.
If the plunger stops over a distance of 20.0 cm, the average force exerted on it by the gun can be found using the work-energy principle, where the work done by the force in stopping the plunger is equal to the kinetic energy of the plunger. Lastly, comparing the force exerted on the gun when the bullet is accelerated to its velocity over 10.0 ms, gives us insight into the forces involved during the bullet's acceleration within the gun's barrel.