Solving a Tough Physics Problem: Force Exerted by a Falling Chain on a Table

[epl_manutd]

A chain of length L and total mass M is released from rest with its lower end just touching the top of a table, as in figure
(a). Find the force exerted by the table on the chain after the chain has fallen through a distance x, as in figure (b).
Assume each link comes to rest the instant it reaches the table.

figure can be found at
http://polaris.deas.harvard.edu/gali...52/151/hw5.pdf
#11

Thanks

The answer is 3xgM/L if you wonder. I want to know how that is achieved.

 

[Gyroscope]

I could not access the figure. Would you please see if you can fix that?

 

[epl_manutd]

that is the link

http://polaris.deas.harvard.edu/galileo/images/material/852/151/hw5.pdf

 

[epl_manutd]

hmm, it doesn't get posted
try google: "released from rest with its lower end"
there is a pdf file that has harvard on it.
and it's #11 of that

Sorry

 

[Gyroscope]

I see the image, before you get help you must show your thoughts about the problem. Say something about it.

 

[Andy_ToK]

a hint gravity and impulse