What does "trajectory" describe in ballistics?

The term "trajectory" in ballistics specifically refers to the path that a projectile follows through the air during its flight. This encompasses the influence of various forces acting on the projectile, such as gravity, air resistance, and any initial velocity imparted by the firearm upon firing. Understanding trajectory is crucial for predicting where a projectile will land and for making accurate shots, as it provides insight into the arc and distance the projectile will travel before reaching the target.

The other options, while related to projectile dynamics, describe different aspects of ballistics. For example, the speed of a projectile is important in determining its energy and potential impact, while the angle of shot can affect trajectory but does not describe the trajectory itself. Weight distribution, on the other hand, plays a role in the stability and performance of the projectile but is not directly related to the path it takes during flight. Therefore, the correct choice accurately captures the comprehensive definition of trajectory in the context of ballistics.