A stone of mass 
is tied at one end of a string of length 
and is whirled in a horizontal circle. If the string can withstand a maximum tension of 
, then the permissible maximum number of rotations per minute is
A
19
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Mass of stone, 
Length of the string 
radius, 
Maximum tension, 
Hence, the permissible maximum number of rotations per minute is 
.
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