A uniform chain of length L is lying on the horizontal table. If the content the chain and the table top is 'μ' what is the maximum length of the edge of the table without disturbing the rest of the chain on the table?
A
L(l+μ)
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B
μL(1+μ)
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C
L(1−μ)
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D
none of these
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Solution
The correct option is BμL(1+μ) massperunitlength=MLl=lemgthofhangingmassL−l=massontablesurfaceSo,uML(L−l)g=ML⋅l⋅gμ(L−l)=lonsolvingl=μL1+μ