FWS~7  x l  D   C    ?  ! caption1 路径 caption2 力的图示 caption3 图示水力 caption4 小船速度 caption5 速度图示 caption6 小船对水速度 caption7 牵引力 caption8 复位 caption9 水流速度 caption11 起锚 caption13 小 caption14 大 caption15 caption16 Unmoor caption12 Time:  captionc  captionc   p       	 
                   = ?    FSCommand:fullscreen _root direction arrow0 _rotation main line initiative _visible passive velocity velocitywater velocityboattowater main1 point _alpha       N N         O  N N N  O  N N 	N  O  N N 
N  O  N N N  O  N N N  O  N N         O  !    l|!d   3 G>@ 	        (   @   	=             ?}        D>@   	                        vh _root obsever space s     N N  N    
   G    g                #     @ @      &   @ | @waterwave      V  `.  3fC"   3f  "%4mQj&3JhJlr!t:3[L%/U6LpN\zaʤ%iSy)#H+*2DLi0JiurMuY 	        @        SH|@ (   %MP 	#       {2M,    @   	   	     &   arrow0 @    $   
 U0 t    TOڠ[\V>1` 	      
  @        ` >     Uac 	        @   	0        &    arrow0    &   line0 @   C    UXt    %VQڠ[\V>3c    %UgQڠ[\V>3c 	        @   	0        &   line0    &    arrow0 @   	     %   .       f?` velocityboattowater    .       } velocitywater    .	       ?  velocity    .        ? passive    &   initiative @   	         	  boatback         [     _root   state N    I 5 !      p     this   startDrag R       (        &    @Zline @      &   @ |>main 	     @   	        space          
  H mycolor _root gou1 gou Color setRGB gou2 gou3 gou4 gou5 caption10 <p align='center'><font color='#999999'> caption11 </font></p> t state graph graphstate showgraph name n dot createEmptyMovieClip lineStyle y1 x1 moveTo r x2 y2 Math sqrt ceil m lineTo a arrow0 _xscale line0 _x _rotation rotation main line _visible x v vx vy ax ay <p align='center'><font color='#000000'> power1 fader _y vh direction sth cth x0 y0 boatback datainitialize1 datainitialize2 cleargraph objectintialize y dt k hw controlinitialize reset  gou   1   N N N    @         R   N N N    @        R   N N N    @        R   N N N    @         R   	N N N    @         R start0   `   
 NG GO              O         =     = cleardotline  name n      	    = dotline  name n x1 y1 x2 y2    	    =         R       R        G     R           R !    ! H      ! G    ! G     R !!    G    ! G    ! G     "R !!P   arrowline  name r rotation      #d     	   H  	 #2    	    '   ;   H   # )   G $ %#O & % #	 ?QO $ 'O () showforce  x     *N +N 	  ,- datainitialize1   K  .         /         0         1         2         datainitialize2   /      O  
3 NG GO controlinitialize      4N 5N   6          7N 5N   6          8N /  9         :    $ (        O objectintialize   R   *N +N   '; 6<  *N =N   '; 6<
 reset   @          >=         ?=         @=         A=
 graph   d         *N R  *N N .  f       = B -    = cleargraph            *N R showgraph  x $   *N N ,-O - C? !    D=
?
ףp E            F=         G=    x
  l? _root state x main boatback _x y _y x0 y0 onpress direction th1 _xmouse _ymouse Math atan2 th arrow0 _rotation th0 cth cos sth sin vh fader p power1 f hw datainitialize1 vy ax fzx m ay fzy vx dt line initiative arrowline fz passive v velocity velocitywater v1 velocityboattowater _visible abs dotline cleardotline graph lineTo sqrt k t round showtime caption12     N    I H    N N N   N N N  	   
N I     N   ܥL@c      R  N G  	 fL@ffff     R 	 fL@ffff     R  O    N N N O   N N N       N N N 
                  H 	         g           = r          H  	         H           = ,  g  	         g           =    g 	         H           =     N    I   !  "G # $  %G # && ! 'G    $ 'G  & 'G    'G   N (N            N (N )N    *=            & G               R	 !	@-DT    +   N (N ,N    *=    &       R	 !	@-DT -       N (N .N    *=        N (N /N    *=            & G               R	 !	@-DT    G 0       N (N 1N    *=   N (N .N 2N   N (N /N 2N   N (N 1N 2N I 	 ?g -	 ?g       3R -	 MbP?G	 z?{Gg           &                  N (N    4=         &         &          N (N    4= F       N (N    5=      N (N    5=   N <   O  O      6 7R -& &    G     8R 0&  &     G     8R	 MbP?G +0 0 9 0 9    G "        + &  0 %        +   0 -	         g B  ::	 ?G :: 
        ;R 
    :	         g !    <  =N :GO     <>O     @ @      &   @ |Pobsever  -    to   fff5Ϟ1_CLz> 	        @   	  f<튣      MA`P   *@8l   $    M	}B_    fff%+Jc´pS\4 	        @   	C           h<4      rG3L 30 @        M<  (    %B*s 	        @   	         
   &   gou @   	    ?                     B  _root main line initiative _visible passive _parent gotoAndStop    N N N O   N N N O        R     @         gou                  B  _root main line initiative _visible passive _parent gotoAndStop    N N N  O   N N N  O        R     @      &  ŊB< gou1 ?V     `	` ?     3    %(q@Y~MG[2rY]4ىi5# ,P>    3f$}  	   !      @   ?  " f]!    X    ^    Q    f    <    C    J            !    (    /    6         @d*%	gOTf?Gd+	?<zY.ykpL9~-BYρAv;A,/~ksvЎ
((G.Ki<!Pp:)^oyN-B9QD&U*	pdirS/-$B
Kefgh[	oPTܩìB%m-A>/Mdw]u݊_JJ'G%=Oχ>?]~FGPgqp'\5м3)
;WF)#Uy^ e<?E!rwo%L^ZRu8Xϥ'_NQ܊J)O(⬖72j,/䯭>WZ	FZ:Vu7AJ0LrvgQ	JO(`dKHG|;z{<>r}'8tF=LZ*vE DMa5rIGz)}(U?w- f|Y=H1D}LZd#և"YButc21'K2wO(@KH3Gv??>>cމӒ.i7b#!2}(*!͐U:ZN
<?@#i s?gp:'Kl	P؞)H	:D^A9f=O)A%ZP NqDTA1ZEp	`_M8I˖? zJ (F/ҀKo<y5qU&<eLZ>FGi*7Ad2O;p%z4b~	Ѯj2ZP
4!"M1DqVԚL!1jS `j_O* PZ(^^O'% :J;BtywLokI 07S)H_?v}ʃZ`2:=C$5?8s'Fyi@/ʖr%/WKD(u1z@	   #   "  @   ?  $ ^D7"0 " ]	}Uπ |ZQed>  Nn}+  q 1eK-*qB|~W_6ܲ"52aϖ1PW%xJ' HNm\Bb!'2bmYr(ׯ,c3Yl胥YYuIFPo/      5KrPr6 	!   %   # ji @  $  @   	   &   !  o    % 8 fader         B   - d                                this   startDrag R       (     @      & & R%U vh    & & 0U power1  E   ' L~ > lll +dfJ `k{p	&mIh%$     ( W~P    # 	   )   (  @   	(   *   '     & ) G arrow0 @   	   +     & *  arrow0 @       + ɳ/lOCdirection            G 
 _root obsever space th0 direction _xmouse _ymouse Math atan2 onpress    N N ܥL@c  N N   N N     RO   	O         _root   onpress  O      ,   , h        5 x;' Ev2  	   -   ,  @   a   .   -  ęU ,  ęU       _root 	  obsever N  space N            start0 =  . jC3O[d`   /   -  ęU ,  ęU       _root 	  obsever N  space N            reset =  / jC3Oj?   0 Arial   	.   1 g,'P00 ,         ( caption7 Traction  1  @OE P	w   2 g.20 ,         ( caption10 <P ALIGN="CENTER"><FONT FACE="Arial" SIZE="15" COLOR="#000000">Unmoor</FONT></P>    & 2  P@:[unmoorl 	5   3 o 00 ,         ( caption9 Speed of water  3 @IO( 	,   4 g+w00 ,          ( caption2 Forces   4 @ Ƨ	,   5 _v` 00 ,         ( caption15 small ! 5 @)	*   6 g#00 ,         ( caption16 big " 6 @3	,   7 _q` 00 ,         ( caption13 small # 7 @POFF	*   8 _F` 00 ,         ( caption14 big $ 8 @PORv	+   9 g ?00 ,         ( caption8 Reset % 9  y@Lk	0   : g-00 ,          ( caption5 Velocities & :  @ 	  ;  ?                     Z 	 _root main line velocitywater _visible velocity velocityboattowater _parent gotoAndStop    N N N O   N N N O   N N N O        R     @         gou                  Z 	 _root main line velocitywater _visible velocity velocityboattowater _parent gotoAndStop    N N N  O   N N N  O   N N N  O        R     @      &' ; Ŋ4@<YJ gou4 ?/  < Arial Black  ; |    Q5ibUG</ܬs7GQiUsoR 5gf Rj7 kSz@]:Z{ 6L |>}w lBpZG zv 5`br3ʊ7#ܷcr3K 5d&PUUSU;\ L b GrinJvݒxi97HFrkH` 5dFPӖ3XE{^v 5hjeJXXLQT] T c07riiJ-Y, KtR4
%45'6aiXԺMyM9one:U3lV`&@ % 5dAxi~]/ $*a@0E%dTiM% P"Ȇ  u1!q @"YlUNj:h	@L?jS֛m׵h  5iq6f`M6*@_k.#-= M P T h i m s y 	&   = oJ 0< h         ( showtime ) = j   >   ,  ęU       _root help    N I         O       O ?   ? 宋体   	   @ W
0? ,         (  ? 	   A     @   ?   B   -  ęU ,  ęU          _root   help  O 	"   C _Z` 00 ,       (  help 	%   D _V_` 0? ,          (  确定  	  E wxx0? ,        X  假定船淹没在水下的部分是半球形的。在这个假定之下，船体周围的水对船水平方向的作用力的方向跟船相对水运动的方向完全相反，作用力的大小随着相对运动速度的增加而增大。按照比较流行的观点，船的操纵者能够直接控制的是牵引力（无论什么动力机械？）与速度(选用什么参考系？)的乘积（矢量积）。这里，船的操纵者直接控制牵引力。 	   F  ?     > ` @ in@ @  R@ jq`@  - [j:    A E@ 	 7   B gr& 
 C t	@  D lr.@  E V @      &* F  @ }helpc  "   G {i`)^      ^{*zʅ7 G  2   H hSA  
< f)BHB< E=@ 8 H   @bH0@    	            ! " # $ % & ' ) * @ @   
