Question

Mco
If ds is infinitesimal linear dispia
rement, do is infinitesimal angular
displacement fris radius of the dich
Shea
a ds = r de
b) do = rds
r=ds x do
d) ds = r2 do
c)​

Answer 1

Answer:

Rotation of a rigid body P about a fixed axis O.

Angular displacement of a body is the angle in radians (degrees, revolutions) through which a point revolves around a centre or line has been rotated in a specified sense about a specified axis. When a body rotates about its axis, the motion cannot simply be analyzed as a particle, as in circular motion it undergoes a changing velocity and acceleration at any time (t). When dealing with the rotation of a body, 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 body's 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.