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virtual displacement
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The Colosseum, Rome, Italy. Giant amphitheatre built in Rome under the Flavian emperors. (ancient architecture; architectural ruins)
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virtual displacement

physics

Learn about this topic in these articles:

virtual work

  • vector mathematics
    In mechanics: The principle of virtual work

    …of virtual work, any infinitesimal virtual displacement in configuration space, consistent with the constraints, requires no work. A virtual displacement means an instantaneous change in coordinates (a real displacement would require finite time during which particles might move and forces might change). To express the principle, label the generalized coordinates…

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