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Irodov homework help

  1. Jan 24, 2008 #1
    I've got a problem from Irodov.
    There are two stationary fields of force F=ayi and F = axi + byj, where i and j are unit vectors of the x and y axes, and a and b are constants. Find out whether these fields are potential.
    But how do I know that a field is potential? I've read that I have to calculate the work performed by these forces and if the work depends on the path or not. But why of this?
     
    Last edited: Jan 24, 2008
  2. jcsd
  3. Jan 24, 2008 #2
    nobody knows...
     
  4. Jan 24, 2008 #3
    what does this red card mean?
     
  5. Jan 25, 2008 #4
    I think Checking whether the curl of total fields is zero or not is the best way
     
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