4 An L 70 m long thin tape wound on a spool of radius ro 10

Last updated: 6/10/2023

4 An L 70 m long thin tape wound on a spool of radius ro 10 mm makes a tape roll of outer radius R 25 mm A motor used to wind the tape rotates the spool at a constant angular velocity and takes T 165 s t complete the winding Calculate length of the tape which has been woun in t 110 s from the beginning of the winding 2 Ans Aus 4 R 36 60 ro ro T R 8 2