Uniform Circular Motion: Motion of a body
with constant speed along the circumference of a circle.
Non-uniform Circular Motion: Motion of a body
with variable speed along the circumference of a circle.
Position Vector or Radius Vector: The vector drawn
from the centre of the circle to the position of the particle performing
Angular Displacement: The change in the angular position of
a particle with respect to some reference line.
Angular Speed: The rate at which the angle is traced by
the radius vector w.r.t. time.
Angular Velocity: The rate at which angular displacement
takes place w.r.t. time.
Angular Acceleration: Rate of change of angular velocity
Period (T): The time by the particle to complete one
Frequency of Revolution (n): The number of
revolutions made by the particle in one second.
Centripetal Force: The force acting on a body in
circular motion directed radially towards the centre.
Centrifugal Force: The radial force directed away from
the centre of the circle and acting on a body in a rotating frame of
Banking of Roads: To ensure the safety of a moving vehicle,
the surfaces of curved roads are made inclined to the horizontal with the
outer edge at a higher level than the inner edge. This is called banking of