since wave pattern changes completely, the resistance will change. Is that clear? Am I clear? Now, how do we take into account in resistance? We will, this problem was studied way back in 1908 by Sir Thomas Havelock, whose name I have mentioned while talking about wave making pi1er in wave resistance of ships. He postulated whether it is true or not is debatable, but mostly true because it more or less agrees with experiments that the wave making resistance of a ship will be same for the same wave speed. The wave making resistance of a ship will be same for the same wave speed. If the wave speed was same, then the wave making resistance will be same.