, υ / ( ) / ( )., υ = = 30 /.
( ) -
, , (/), = 1852 / (1852 -
) .
-
:
1. , n
/ ( ). , n = 1500 /.
, ..
, ( ).
. , / .
2. , ω
/ ( ) , , 
( ).
, ω = 157 .
, ,
(º), , 360º / 2π = 360 / 2*3,14 = 57º36' (
36 ).
, 360º / 2π.
, .. -
, .
.
.
( ):
ω = 2 πn / 60 = n / (60 / 2 π) = n / 9,55 ≈ n / 10 (.1).
( ):
n = 60 ω / 2 π = 60ω / 2*3,14 = 9,55 ω ≈ 10 ω (.2).
.
1.
n = 1500 /.
.
ω =n / 9,55 = 1500 / 9,55 = 157 ≈ 150 .
2.
ω = 314 .
.
n = 9,55 ω = 9,55*314 = 3000 ≈ 3140 / .
:
1. (, t), 1at = 1 / 
( : -
- );
|
|
|
2. (, ), 1 = 1/ (: .
).
, :
1 (), 1 = 10 
.
:
1 t = 1 / = 9,8*10 
= 0,098 ≈ 0,1
1 = 10,204 at≈ 10 at.
3.
= 4 / (4 ). .
= 4 / ≈ 4*0,1 = 0,4
4. 4 . .
= 4 ≈ 4*10 ≈ 40 at.
