A pulley system with two pulleys and two suspended masses

AI Thread Summary
The discussion revolves around a pulley system with two pulleys and two suspended masses, questioning the movement of blocks A and B based on their masses. The participants clarify that the solution assumes equal masses, which determines the direction of movement. They also explain that the relationship between the movements of the blocks is derived from the lengths of the rope segments, specifically that if block B moves up by 1 cm, block A moves down by 2 cm due to the configuration of the pulleys. The conversation further delves into the mathematical representation of the system, focusing on how to express the total length of the rope and the changes in variables as the blocks move. Overall, the thread emphasizes the importance of understanding the constraints and relationships in the system to solve the problem accurately.
  • #51
BvU said:
I am somewhat flabbergasted at the length (:wink:) of this thread!
If you do the experiment with a real piece of rope things will be clear quickly.

If you still insist on a mental exercise, remove all unessentials: reduce the pulleys to points, etc

##\ ##
Thank you for your reply @BvU!

Sorry, what do you mean reduce the pulley to points?

Many thanks!
 
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  • #52
erobz said:
o_O It was getting late! I guess my mind was just inserting symbols that weren’t there.

Edit: Actually at a later post (#31) than what you must have been quoting they did get the proper result.
Thank you for your reply @erobz !
 
  • #54
Callumnc1 said:
Sorry, what do you mean reduce the pulley to points?

You can get far with just a few pins or paperclips and a piece of wire, real or imagined ..

##\ ##
 
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  • #55
BvU said:
You can get far with just a few pins or paperclips and a piece of wire, real or imagined ..

##\ ##
Ok thank you @BvU !
 

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