A coin placed on a rotating turn-table slips, when it is placed at a distance of 9 cm from the center. If the angular velocity of the turn-table is trippled, it will just slip, if its distance from the center is
Text Solution
Verified by ExpertsThe correct answer is:
D
Necessary centripetal force to the coin is provided by friction. Thus, 
or 
is made three times. Therefore, distance from centre 
will become 
times, i.e. 1 cm.
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