: 500 . =600 ./3. =28 ./3 .
, L =150 (L-L) . Tt=14 ./3, (- , ..) t =5 /3.
: 1. ?
2. ?
1. , .
L=500
. ,
= b
:
= + *
:
b = + (L-)
: ,
- , .
= b, :
+ *= + (L-)
= L- =L/2 = 500/2= 250 .
250 .
2. , 150 . t =14 ./3, - , .. t =5 /3. , :
Lt (L-Lt)
= + L*T+ *2 +t
b = b + *(L-X2 Lt)
+ L*T+ *2 +t= b + *(L-X2 Lt)
:
1 ( ):
= + * = 600+28*250=7600 ./3
= b = 7600 ./3
( , 150 ):
= + L*T+ *2 +t = 600+14*150+5+28*137,4=6552 ./3
b = b + *(L-X2 Lt) = 600+28(500-150-137,4) = 6552 ./3
, , .
8.3. :
. 8.1
: L.. . = ./3. =.. ./3 .
, L=.. (L-L) . Tt=.. ./3, (- , ..) t=.. /3.
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: 1. ?
2. ?
8.1