A coin  kept  on a rotating  gramophone  disc  just  beging  to  slip  if its
Channel: Doubtnut
Date: 24/05/2020

A coin  kept  on a rotating  gramophone  disc  just  beging  to  slip  if its   centre  is at a distance  of 8 cm from   the   centre  of   the  disc  .The  angular  velocity  of the gramophone  disc  is  then  doubled  , Through  what  distance  , the  coin    should  be  shifted towards the centre  , so  that  the  coin  will  just  slip ?.