Solving the Puzzle of the Suspended Brick

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The discussion centers on a physics problem involving a brick suspended from the ceiling by a weak rope, with a second rope held by a student. When the second rope is pulled slowly, the first rope breaks due to gradual force application, while a sudden pull on the second rope causes it to break instead. The key questions raised include identifying the forces acting on the brick and understanding the differences in tension between the two scenarios. A free body diagram is suggested to visualize the forces at play. The conversation emphasizes the importance of understanding force dynamics in practical experiments.
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Hi: I have two questions to answer and I,m not sure of the answers. I have looked in textbooks but that didn't help. The first one is:
There is a brick hanging from the ceiling by a weak rope. there is another rope atached to the brick which a student is holding. If the second rope is pulled slowlly the first one breaks, but if the second rope is pulled abruptlly then it is the one that breaks.
 
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Very true.
 
trueblue said:
Hi: I have two questions to answer and I,m not sure of the answers. I have looked in textbooks but that didn't help. The first one is:
There is a brick hanging from the ceiling by a weak rope. there is another rope atached to the brick which a student is holding. If the second rope is pulled slowlly the first one breaks, but if the second rope is pulled abruptlly then it is the one that breaks.
What are the forces on the brick? What is the difference between the two rope forces on the brick? (do a free body diagram). (PS, if you try this as an experiment, use a helmet:wink: ).

AM
 
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