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anonymous

  • one year ago

The figure below shows a system of two masses connected by a string. As m falls a distance h, M accelerates up the plane. The coefficient of friction between M and the inclined plane is µ. What is the change in potential energy on the system after the m has fallen a distance h?

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  1. anonymous
    • one year ago
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    |dw:1443927305016:dw|

  2. anonymous
    • one year ago
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    @Photon336

  3. Photon336
    • one year ago
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    |dw:1443927600583:dw|

  4. Photon336
    • one year ago
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    @Michele_Laino @sweetburger @Shalante

  5. anonymous
    • one year ago
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    LOL thank you but i need the potential energy not tension

  6. anonymous
    • one year ago
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    my friend put PE=mgh so change in PE=mgh2-mgh1 but the teacher said that we need to include PE of the cart (M) @Photon336

  7. Photon336
    • one year ago
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    well. tension would cancel out :)

  8. Photon336
    • one year ago
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    but definitely you need to use that formula I think this problem would be more approachable if we just considered doing it in terms of potential energy

  9. anonymous
    • one year ago
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    oh ok! but where would i include h @Photon336

  10. IrishBoy123
    • one year ago
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    \(\Delta U = -mgh + Mgh \sin \theta\)

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