[" A gramophone record is revolving with an angular "],[" velocity "omega." A coin is placed at a distance r from the "],[" centre of the record.The static coefficient of friction "],[" is "mu." The coin will revolve with the record if :- "]

A gramaphone record is revolving with an angular velocity omega . A coin is placed at a distance r from the centre of the record: The static coefficient of friction is mu . What will be the value of r for that the coil will revolve with the record?

A gramophone record is revolving with an angular speed .A coin is placed at a distance r from the centre of the record.RThe coefficient of static friction is u.the coin will revolve with the record if :

A gramophone disc rotates with a uniform angular velocity of 6 rad//s . A coins of mass 2 gm is placed 5 cm from the centre .The centripetal force acting on the coin is