E1.3 Kinematics

Kinematics: Study of motion - A branch which deals with the pure motion of a body (or system) without considering the cause of the motion in the object. (slide)

It is a well established fact that everything in the universe is in motion. The motion is either uniform or non-uniform (acceleration) For example: Fundamental particles within atoms to very big galaxies. For the systematic study of these behaviours, mechanics is further divided into such as follows:

Mechanics: The study of behaviour of physical bodies when subjected to forces or displacements and the subsequent effects of the bodies on their environment is called Mechanics.

Statics: It deals with the equilibrium condition if an object under the action of a number of forces.

Dynamics: It deals with the study of motion of the objects taking into consideration the cause of motion, which are non-equilibrium condition (i.e. resultant motion) of an object.

• Kinematics: This is a study of motion of an object forgetting the cause of motion. For example: Time, Position, Displacement, Velocity, acceleration etc. It mainly describes the geometry of motion of the object.
• Kinetics: It deals with the studies of forces acting on a body and its resulting motion. 

In this note we will mostly deal with the Kinematics and Kinetics motion of the body.

» Distance and Displacement 

» Speed and Velocity 

» Acceleration 

» Equation of Motion with Uniform Acceleration 

» Motion of a Freely Falling Body 

» Relative Velocity 

» Projectile.

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