Particle dynamics is a branch of physics that studies the motion and behavior of individual particles, such as atoms, molecules, or subatomic particles, in various physical systems. This field typically involves analyzing the interactions between particles, their trajectories, velocities, and forces acting upon them. The study of particle dynamics is essential in understanding the behavior of complex systems, such as fluids, gases, and solids, at the microscopic level. This research area plays a crucial role in diverse fields, including fluid mechanics, molecular biology, and material science.