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The light

  1. Apr 4, 2005 #1
    Can we consider light as a force ?

    can a very heavy light move a 0.00002 gram mass ?
  2. jcsd
  3. Apr 4, 2005 #2


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    Gold Member

    :confused: a heavy light...? :biggrin:

    If you've ever seen the concept of a laser-driven sailship, then you must realize that light has pressure, and in that sense it can move a mass.
  4. Apr 4, 2005 #3


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    Light has momentum and momentum flux density,so definitely can act on material bodies with a force...

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