- #1
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The discussion centers on the confusion between two questions regarding a block's motion, specifically the difference between impending motion and the start of sliding. Participants express skepticism about the problem's clarity, suggesting that the answers may be incorrectly assigned. They highlight the possibility of the block tipping as a distinct motion from sliding, questioning the conditions under which tipping occurs. The conversation emphasizes the complexity of the scenario, particularly given the block's height and weight. Ultimately, the participants seek to clarify the relationship between tipping and sliding in the context of the problem.
![DSC_0135[1].JPG](/data/attachments/73/73893-9bd24eab8041d39966a161f43a303ee1.jpg?hash=m9JOq4BB05)
The answer is (B) but I don't really understand why.
Based on formula of Young Modulus:
$$x=\frac{FL}{AE}$$
The second wire made of the same material so it means they have same Young Modulus. Larger extension means larger value of ##x## so to get larger value of ##x## we can increase ##F## and ##L## and decrease ##A##
I am not sure whether there is change in ##F## for first and second wire so I will just assume ##F## does not change. It leaves (B) and (C) as possible options so why is (C)...