A chain of mass 
and length 
is placed on a table with one-sixth of it hanging freely from the table edge. The amount of work done to pull the chain on the table is -
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
work done by external force 
change in potential energy 
where 
and 
here 
mass of hanging part 
and 
height of center of mass of hanging part of
chain 
so 
so work done 
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