Projectile motion

 Motion projected by the attraction force of gravitation when any object is thrown from earth surface is called projectile motion.

It may be curve structure and follows parabolic equation. Even it may be straight line. For example, Ballistic motion is straight line.

In two dimensional axis, velocity of object thrown combined with horizontal velocity and vertical velocity. 

Trajectory range is the total path of travelling of object in projectile motion.

When object is thrown, it reach into highest position and gradually decline its height and reach on earth surface.

Circular motion

 The motion of circularly moving object is called circular motion. 

In a circular motion displacement of object calculate as angular displacement.

velocity is angular velocity in circular movement.

The angular displacement is called radian when arc equal to radius.

Angular displacement is produced angle in the centre of the circle during circular motion of the object.

Angular velocity is angle produced by unit time.