Recent content by fvertk

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    Pulley / conservation of energy problem (should be really easy)

    Yes, in the case that block A has a faster velocity downward, it does. When I doubted that initial assessment of the system, thinking that each block has equal velocity, that's when I got confused.
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    Pulley / conservation of energy problem (should be really easy)

    I see... I must have really botched that square root then by doing two under one. Strange, I guess I had some misconception that that actually worked. Nice catch, that actually gave me the right answer. Thanks alphysicist. By the way, physixguru, I'm not sure what you were talking about above...
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    Pulley / conservation of energy problem (should be really easy)

    Oh yeah, duh. *smacks head* Although, shouldn't my technique work just as well? Let me try yours though, hold on...
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    Pulley / conservation of energy problem (should be really easy)

    Why is the latter part of that v^2/4? How did you eliminate the fraction beneath the exponent? What I did was simplify the 1/2 to be from this: 3.26699 = (v^2)/2 + ((v/2)^2)/2 To this: 3.26699 = 1/2((v^2) + ((v/2)^2)) And then multiplied both sides by two, getting me this: 6.53398 = v^2 +...
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    Pulley / conservation of energy problem (should be really easy)

    Okay, I see what you're saying alphysicist. Looks like I gave it the wrong sign in step 4 in my addition from step 3. But that should be okay, since I changed it anyway... I'm not sure that's the problem then.
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    Pulley / conservation of energy problem (should be really easy)

    Right, I did change that to positive in order to get the square root. It shouldn't matter what sign it is since I'm trying to find the speed, right? And at that point, I'm no longer adding/subtracting, but multiplying. What I did to get to step five was multiply 2.36699 by 2, then find the...
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    Pulley / conservation of energy problem (should be really easy)

    Well, when looking at the problem, it appeared that way initially. I looked up other responses to it, and that's what someone here had to say about it too: https://www.physicsforums.com/showthread.php?t=95263 (read Doc Al's post) Now that I look at it again, I guess they actually ARE rising...
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    Pulley / conservation of energy problem (should be really easy)

    Uhm... how so? I've looked at the system again, and it looks like block A goes down at 2x the rate that block B goes up.
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    Pulley / conservation of energy problem (should be really easy)

    This problem is bugging the crap out of me. It's the last one I need to do. I swear I got the right answer. Maybe you experts can help? :) Homework Statement The system shown in the figure below consists of a light, inextensible cord; light frictionless pulleys, and blocks of equal mass...
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