All the particles of a rigid rotating body move in a circular path when the axis of rotation:-

Statements : (a) In translatory motion each point of the body experiences the same displacement as any other point as time goes on, so that the motion of any particle epresents the motion of the whole body. (b) In rotatory motion, all the particles in the rigid body moves in concentric circles about the axis of rotation.

Assertion: A rigid body not fixed in some way can have either pure translation or a combination of translation and rotation. Reason: In rotation about a fixed axis, every particle of the rigid body moves in a circle which lies in a plane perpendicular to the axis and has its centre on the axis.

A rigid body not fixed in some way can have either pure translation or a combination of translation and rotation. In rotation about a fixed axis, every particle of the rigid body moves in a circle which lies in a plane perpendicular to the axis and has its centre on the axis.

A particle is moving with a constant speed in a circular path. Find the ratio of average velocity to its instantaneous velocity when the particle rotates an angle theta =((pi)/(2)) .

A particle is moving with a constant speed in a circular path. Find the ratio of average velocity to its instantaneous velocity when the particle rotates an angle theta =((pi)/(2)) .

The axis of rotation of a purely rotating body

The axis of rotation of a purely rotating body