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

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In summary, solving a tough physics problem involving the force exerted by a falling chain on a table requires understanding and applying the principles of gravity, tension, and acceleration. The weight of the chain, the distance it falls, and the angle at which it lands all play a role in calculating the force exerted on the table. By breaking down the problem into smaller parts and utilizing equations such as Newton's second law and the Pythagorean theorem, the force exerted by the falling chain can be accurately determined.
  • #1
epl_manutd
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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.
 
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  • #2
I could not access the figure. Would you please see if you can fix that?
 
  • #3
that is the link

http://polaris.deas.harvard.edu/galileo/images/material/852/151/hw5.pdf
 
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  • #4
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
 
  • #5
I see the image, before you get help you must show your thoughts about the problem. Say something about it.
 
  • #6
a hint gravity and impulse
 

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