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Level I, , 106. For a rotating body about fixed axis,, , 108. AO/At =...A...., , , , (a) every particle moves in a circle At>0, (b) the linear velocity is related to angular velocity Here, A refers to, (c) Both (a) and (b) are correct (a) instantaneous angular velocity, (d) Both (a) and (b) are incorrect (b) angular velocity, Directions (Q. Nos. 107-110) Answer the following Oe ete autre cate ;, (d) both (a) and (b) are possible option, , questions on the basis of given figure, 109. The relation between v, 7 and @ is, , (a) v= 0/r (b) v=r/o, (c) v=or Ol — ar, o, , 110. The linear speed of the particle on the axis of, rotation, is, (a) ro, (b) zero, (c) infinite, (d) None of the above, , , , Rotation about a fixed axis. A particle P of the rigid body 111. For a pure rotational motion,, rotating about oe ae ore moves in a circle with (a) wis same for all particles of body, centre C ont i i, e the axis, (b) linear velocity of each particle is same at an instant of time, : (c) Vand @ both are constant for all article, 107. If particle P revolve angle A@ in A¢ time, then Be (d) None of the above onal, At, represents 112. Choose the correct option., , @ eteageanaular eit (a) Angular velocity is a scalar quantity, , (ol dnetentanectis angular velocity (b) Angular velocity is a vector quantity, , (c) Both (a) and (b) are possible options (c) Angular velocity vector lies along the axis of rotation, (d) None of the above (a) Both (b) and (c)