gistfile1.txt

-- inside damage()

  status, err = pcall(function ()
      for k,v in pairs(entity.velocity()) do
        print("velocity: ",k, v)
      end
    end)
  print(status)
  print(err)
  
output to console after 4 hits.

velocity:       1       -9.5567903518677
velocity:       2       -7.614100933075
true
nil
velocity:       1       -0.0021059280261397
velocity:       2       12.706013679504
true
nil
velocity:       1       -12.638889312744
velocity:       2       -1.2962963581085
true
nil
velocity:       1       -12.638889312744
velocity:       2       -1.2962963581085
true
nil