o cy\., L:.---�1 G > �• X ) � yv. ? � x

x.; <- � LA :::- COYl>l C'? ) M Co�

E�M \ ,_ ./

� � E ::c v4- xn·+-

ccw1�)

s(A ) (F + i< F = F +

� > Ave('f_)

���kr: N 2 f-;eiJ 11..eOV'/ QI= l w1X'af! :___ u " ; ,b·--7 (e f !:. 0 f tl- 2. 'S, .P. «%c 1, fb....

W:ck

12

- A"P,o<.

']) '> v G r 0 + i2J acJ.p) ( v� w_�- J.1-C'.

Q )(�v =1fv

srjs :::: Q(..2) -t- C�---&t. l -tr FA�

s CA)= F +

J{(BJ J:

0-J noGJ P) VA� Q(JP) � 5:2,(:;Tjl!J

1)+

: r (s-®F) ') r (s+

0 r::-)

c =: d? @s+

15