the assembly of two discs as shown  in figure is placed on a rough horizontal surface and the front disc is given an initial angular velocity ' w '. determine the final linear and angular velcity when both the discs start rolling, it is given that friction is sufficeient to sustain rolling in the rear wheel from the starting of motion.

i am  waiting for the reply..........................any one please...........................................                  

hey i cant understand the diagram.. why will the second sphere move?

the front disc is given an initial angular velocity w.

this question is from arihant..............................................

after both the discs start rolling ,          what  is their final linear and angular  velocity.

ans:       angular velocity:   w / 6 ,      

               linear velocity   :  w R / 6 .

any experts ...........please give the solution  ..... .... ............  i am waiting  !!!!!!!!

hey varun,

i solved this using ur equations but i am not getting the answer.

once u try urself,,,,

i didnot understand the first equation    f+T=MA,

becos for the right disc which is rotating with an  angular velocity w ,  the friction acts in the forward direction(i.e, rightward)  and the tension is acting along the string (leftward)......and  hence the equation comes to be

         f - T= MA

even if it is f-T=MA  u wiill not get the answer. first  u try it and then give the reply completely.......

any experts please answer to my question. i am  not getting it.................

i am waiting only for the complete solution.................and not anything else......................