betelgeuse1 wrote:I was looking at the practice test and there is problem 2 stating
"Two springs, S1 and S2 have negligible masses and the spring constant of S1 is 1/3 that of S2. When a block is hung from the spring as shown above and the spring comes to equilibrium again the ratio of the work done in stretching S1 to the work done in stretching S2 is
The answer given by ets is D but I don't really agree with this: I mean, it should be easier (so less work is needed) to stretch the spring with the smaller spring constant so I would say the answer should be 1/3. At least supposing the springs are ideal and obey to the 1/2kX^2 rule for most of the possible dx's
Christaj wrote:No need to LOL microacg. Yes, I knew it was an old post, but I was led here because I was taking the exam in April and had come across this old booklet of GRE sample questions and did myself questioned the answer until I came here and understood it better. I improved on the solution a bit better I think. The old booklet GRE file is located here:
Others may be using this resource as well, and may search for an explanatory solution, in which case they may come here and find it. I really did it because of that cause and not the other that made you LOL...
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