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Eamcet Physics
1 st Year : Unit 3.3( Laws of Motion ) - Horizontal Plane

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A uniform chain of length ‘L’ hangs partly from a table which is kept in equilibrium by friction. The maximum length that can stand without slipping is ‘l’, then the coefficient of friction between the table and the chain is

B. l/L

C. l/(L - l)

D. (L-l)/l

E. None of the above

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Correct choice: A

Explanation:

Weight on the hanging part = (M/L) lg weight of part resting on the table
= M/L (L–l)g
Friction force = mR = m(M/L) (L–l)g

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Eamcet Physics 1 st Year : Unit 3.3( Laws of Motion ) - Horizontal Plane

Eamcet Physics
1 st Year : Unit 3.3( Laws of Motion ) - Horizontal Plane