送交者: 008 于 2007-09-10, 15:24:30:
回答: great wave 由 cornbug 于 2007-09-10, 15:06:03:
The wave is f(x,t)=A*sin(k*x-w*t).
At any moment the ship stay parallel to the water surface, which is described by tan(theta)=df/dx
Once you define the theta carefully you can write theta=atan(df/dx).
The angular velocity is then d(theta)/dt.