![]() The oldest evidence of stone-tipped projectiles, which may or may not have been propelled by a bow (c.f. ![]() ![]() Gaetano Marzagaglia, Del calcolo balistico, 1748 The blue object experiences Stokes' drag, and the green object Newtonian drag.īallistics is the field of mechanics concerned with the launching, flight behaviour and impact effects of projectiles, especially ranged weapon munitions such as bullets, unguided bombs, rockets or the like the science or art of designing and accelerating projectiles so as to achieve a desired performance.Ī ballistic body is a free-moving body with momentum which can be subject to forces such as the forces exerted by pressurized gases from a gun barrel or a propelling nozzle, normal force by rifling, and gravity and air drag during flight.Ī ballistic missile is a missile that is guided only during the relatively brief initial phase of powered flight and the trajectory is subsequently governed by the laws of classical mechanics in contrast to (for example) a cruise missile which is aerodynamically guided in powered flight like a fixed-wing aircraft. The black object does not experience any form of drag and moves along a parabola. ![]() Trajectories of three objects thrown at the same angle (70°). ![]()
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