# Dynamics

**Dynamics** is the branch of mechanics which deals with the study of bodies in motion.

**Branches of Dynamics**

Dynamics is divided into two branches called *kinematics* and *kinetics*.

Kinematics is the geometry in motion. This term is used to define the motion of a particle or body without consideration of the forces causing the motion.

Kinetics is the branch of mechanics that relates the force acting on a body to its mass and acceleration.

**Symbols and Notations**

s = distance

x = horizontal displacement

y = vertical displacement

v = velocity

v_{f} = final velocity

v_{i} = initial velocity

a = acceleration

g = acceleration due to gravity

t = time

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