Recent content by brainyasian

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    Use Conservation of Momentum or Conservation of KE for spring problem

    Very well, go to this link for the problem. https://www.physicsforums.com/showthread.php?p=3669539#post3669539
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    Use Conservation of Momentum or Conservation of KE for spring problem

    Oh, I'm sorry. To clear it all up, it's all in the image. it's stuck to both blocks and when the blocks are pulled apart, they contract
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    Use Conservation of Momentum or Conservation of KE for spring problem

    but doesn't KE(M1) = KE(M2) because of conservation of mass and doesn't M(A)V(A) = M(B)V(B) make momentum equal?
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    Use Conservation of Momentum or Conservation of KE for spring problem

    just the force of the spring. I'm now wondering if this has to do with Center of Mass. We haven't covered that yet though, so I don't know.
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    Use Conservation of Momentum or Conservation of KE for spring problem

    But this is a closed system. Since no energy is lost or gained and this is a perfectly elastic collision, wouldn't both KE and momentum remain the same afterwards?
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    Use Conservation of Momentum or Conservation of KE for spring problem

    isn't this the same principle as two people on a frictionless surface pushing each other apart? I still think it's momentum. Can you please explain using formulas why it's acceleration? I would think that acceleration for the larger mass would be less.
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    Use Conservation of Momentum or Conservation of KE for spring problem

    But then velocity and acceleration can't be the same.
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    Use Conservation of Momentum or Conservation of KE for spring problem

    I'm sorry, I mixed up two problems. But in the problem I gave, wouldn't KE and momentum both be the same?
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    Use Conservation of Momentum or Conservation of KE for spring problem

    Homework Statement The system shown above has a spring attached to two masses. Mass I is 3 times greater in mass than Mass II. The spring is initially stretched and let go to allow the two masses to approach each other. Which of the following is the same for both masses? a. speed b...
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    Use Conservation of Momentum or Conservation of KE for spring problem

    Here's the problem.
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    Use Conservation of Momentum or Conservation of KE for spring problem

    Exactly, so wouldn't both KE and momentum be the same ? But there's only one right answer.
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    Use Conservation of Momentum or Conservation of KE for spring problem

    But I was pretty sure it was elastic. But wouln't that mean that both KE and momentum are the same?
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    Use Conservation of Momentum or Conservation of KE for spring problem

    Homework Statement Block A with mass 13kg is moving right on a frictionless table. Block B with mass 1kg is moving left. Block B has a spring on its left side, the side that will hit Block A. THe question is: Which is the same for both after the collision? 1. speed 2. velocity 3...