The movement of a ship in roll or pitch depends on the size of the waves and the relation between the period of encounter and the ship's period of roll or pitch.
Ushenxiso lwenqanawa kuqengqeleko okanye kugxumeko oluxhomekeke kwisayizi yamaza kunye nokwayamaniswa phakathi kwexesha elibaliweyo kunye nenqanawa ekwixeshana lorolo okanye ugxumeko.