A chain of mass M and length λ is held vertically such that its bottom end just touches the surface of a horizontal table. The chain is released from rest. Assume that the portion of chain on the table does not form a heap. The momentum of the portion of the chain above the table after the top end of the chain falls down by a distance 
.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
( 
M 
)
Sol. After the top end of chain falls down by 
, the speed of chain is
v = 
= 
The mass of chain above table is 
M.
momentum of chain is
M 
= 
M 
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