11
11.1.
=2 3 t + t2, . ( ),
11.2. m = 5 V = 72 / , R = 80 . , , α = 300. 
11.3. 
( ), ∆t = 0,1 . 
. F.
11.4. υ0 = 160 /, 
υ0. 12 . μ = 0,3. S , 20%?
11.5. t = 10 n = 300 -1. 
, .
11.6. , , 
, 
.
.
11.7. d 1. , . 
. , Q 1. d 2 = 2 d 1 
, 
1) 
; 2) 
; 3) 
; 4) 
.
11.8. , h = 20 .
