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jamesqf · 04-01-2009, 10:19 PM

I think you missed the point, which is that rail cars have very low rolling friction. I sure don't think it's possible to push an empty semi trailer on level ground, though it's much lighter than a railroad car.

04-01-2009, 10:19 PM	#41 (permalink)
jamesqf Master EcoModder Join Date: Jun 2008 Location: Earth Posts: 5,209 Thanks: 225 Thanked 811 Times in 594 Posts	I think you missed the point, which is that rail cars have very low rolling friction. I sure don't think it's possible to push an empty semi trailer on level ground, though it's much lighter than a railroad car.