A metal chain of mass 
and length 
over hangs a table with 
on the table.
How much work needs to be done to put the hanging part of the chain back on the table?
(Let 
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Given, mass of metal chain, 
Mass of hanging part 
Position of centre of mass of hanging length from the table
Work required to put hanging part of the chain back on the table,
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