如图,某天我国一艘海监船巡航到\(A\)港口正西方的\(B\)处时,发现在\(B\)的北偏东\(60^{\circ}\)方向,相距\(150\)海里处的\(C\)点有一可疑船只正沿\(CA\)方向行驶,\(C\)点在\(A\)港口的北偏东\(30^{\circ}\)方向上,海监船向\(A\)港口发出指令,执法船立即从\(A\)港口沿\(AC\)方向驶出,在\(D\)处成功拦截可疑船只,此时\(D\)点与\(B\)点的距离为\(75 \sqrt {2}\)海里.
\((1)\)求\(B\)点到直线\(CA\)的距离;
\((2)\)执法船从\(A\)到\(D\)航行了多少海里?\(( \sqrt {2}≈1.414, \sqrt {3}≈1.732\),结果精确到\(0.1\)海里\()\)