送交者: HunHunSheng 于 2005-9-01, 16:00:04:
回答: Lateral momentum could be harder to bear. Just imagine on a rocking boat.. 由 Enlighten 于 2005-9-01, 15:54:51:
That is why I am not OK with fagus's answer.
He said it is OK for the person but not for
the horse.