Question

A uniform chain has a mass m and length l. It is held on a frictionless table with one-sixth of its length hanging over the edge. The work done in just pulling the hanging part back on the table is –

• A. mg$\frac { \ell } { 72 }$
• B.
• C.
• D.

Answer 1

Answer: (A)

mg$\frac { \ell } { 72 }$

Answer 2

W = = =