. , (), t 1 2. v=r1+r2++rn/t1+t2++tn.
, , . .
: 1 v1 1 2 v2, v1 v2.
. .
.
. , . ( ( )).
: ( ) .
F=kx., k
5
. .
, , , . , . , . t v .
v t, , t .
, , . , .. .
X= x0 + ▲X, y= y0 + ▲Y.
(. 33): ▲X= (v0x + vx)2/t.
, (vx + v0x + axt)t/2 = v0xt + axt2/2.
▲y = v0yt + ayt2/2.
X= x0 + v0xt + axt2/2, y= y0 + v0xt + ayt2/2.
R= r0+v0t+at2/2.
. .
, , , , . .
. Δ = Δt , , Δt .
. , , . .
|
|
.
= Fr |Δ |cosα. Fr = F1r + F2r +... . = F1r|Δ | + F2r|Δ | +... = 1 + 2 +....
, ( ) . Δ t, .
6
1) , , . . .
2) (.1.32), , .
3) , ,
4) , .
5) . .