Motion of Rotation

INTRODUCTION

Some bodies like pulley, shafts, flywheels etc., have motion of rotation (i.e., angular motion) which takes place about the geometric axis of the body. The angular velocity of a body is always expressed in terms of revolutions described in one minute, e.g., if at an instant the angular velocity of rotating body in N r.p.m. (i.e. revolutions per min) the corresponding angular

velocity ù (in rad) may be found out as discussed below :

IMPORTANT TERMS

MOTION OF ROTATION UNDER CONSTANT ANGULAR ACCELERATION

RELATION BETWEEN LINEAR MOTION AND ANGULAR MOTION