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A uniform chain of mass m and length l i...

A uniform chain of mass m and length l is lying on a horizontal table with one-third of its length hanging over the edge of the table.

If the chain is limiting equlibrium, what is the coefficient of friction for the contact between table and chain?

A

`1/2`

B

`1/3`

C

`2/3`

D

`3/2`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A chain is lying on a rough table with a fraction 1/n of its length hanging down from the edge of the table. if it is just on the point of sliding down from the table, then the coefficient of friction between the table and the chain is -

    A
    `(1)/(n)`
    B
    `(1)/((n-1))`
    C
    `(1)/((n+1))`
    D
    `(n-1)/((n+1))`

  • A uniform chain has mass Mand length L. It is lying on a smooth horizontal table with half of its length hanging vertically downward. The work done in pulling the chain up the table is:

    A
    `MgL//2`
    B
    `MgL//4`
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    `MgL//8`
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  • A uniform chain of length l and mass m is placed on a smooth table with one-fourth of its length hanging over the edge. The work that has to be done to pull the whole chain back onto the table is :

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