Question

What is angular displacement ?explain in detail.

Answer 1

Angular displacement of a body is the angle in radians (degrees, revolutions) through which a point or line has been rotated in a specified sense about a specified axis. When an object rotates about its axis, the motion cannot simply be analyzed as a particle, since in circular motion it undergoes a changing velocity and acceleration at any time (t). When dealing with the rotation of an object, it becomes simpler to consider the body itself rigid. A body is generally considered rigid when the separations between all the particles remains constant throughout the objects motion, so for example parts of its mass are not flying off. In a realistic sense, all things can be deformable, however this impact is minimal and negligible. Thus the rotation of a rigid body over a fixed axis is referred to as rotational motion.

Answer 2

$\huge\textbf{Answer}$


It is the angle subtended by the radius vector of a body in circular motion at the centre.

Which is done by it in given time.

It's unit is radian.

It is a vector quantity.

Ø = l/r

l = r Ø