Question

A uniform chain of length 3m is kept on a table such that a length of 1m hangs freely from the edge of a table. The total mass of the chain is 4.5kg. What is the work done in pulling the entire chain on the table?


(pls do explain the steps)

Answer 1

Answer:

W=mgl/2n^2

n=1/3  

l=3m

g=10m/s^2

m=4.5 kg

Substituting all these values we get;

W=4.5*10*3/2*9

=7.5 J