A gramophone record is revolving with an angular velocity ( f ) . A coin is placed at a distance 
from the centre of the record. The static coefficient of friction is 
. The coin will revolve with the record if
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
: The coin will revolve with the record, if Force of friction 
Centrifugal force
or 
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