A uniform chain of length `2m` is kept on a table such that a length of `60 cm` hangas freely from the adge of the table . The table . The total mass of the chain ia `4 kg` What is the work done in pulling the entire the chain the on the table ?

Options

A. 7.2 J
B. 3.6 J
C. 120 J
D. 1200 J

Answer

B