AP EAMCET2011PhysicsLaws of Motion
A uniform chain of length L is lying on the horizontal table. If the coefficient of friction between the chain and the table top is , what is the maximum length of the chain that can hang over the edge of the table without disturbing the rest of the chain on the table?
Options
- AL (1+ )
- BL (1+ )
- CL (1- )
- DL (1- )
Correct answer
B. L (1+ )
Step-by-step solution
Let l^ part of the chain is hanging over the edge of table without sliding. = Length hanging over the edge Length lying on the table (As the chain have uniform linear density) array ll & = l^ (L-l^ ) & l^ = L (1+ ) array