Define angular displacement and angular velocity
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Angular displacement is a vector quantity and it the angle subtended by any point of the rotating body with its axis. In S.I. its unit is radian. Angular velocity is the rate of change of angular displacement and it is also a vector quantity.
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Angular Displacement Definition
Angular displacement is defined as “the angle in radians (degrees, revolutions) through which a point or line has been rotated in a specified sense about a specified axis”. It is the angle of the movement of a body in a circular path.
What Is Angular Displacement?
It is the angle made by a body while moving in a circular path. Before we go any further into the topic, we have to understand what is meant by rotational motion. When a rigid body is rotating about its own axis, the motion ceases to become a particle. It is so because in a circular path velocity and acceleration can change at any time. The rotation of rigid bodies or bodies which will remain constant throughout the duration of rotation, over a fixed axis is called rotational motion.
The angle made by the body from its point of rest at any point in the rotational motion is the angular displacement.
Unit Of Angular Displacement
The unit for this is Radian or Degrees. Two pi radian equals to 360o. The SI unit of displacement is meter. But the as angular displacement involves curvilinear motion. SI units of angular displacement is Radian or Degrees.
Measurement of Angular Displacement
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