<span>F-m*g*sin(a)-k*m*g*cos(a)=0; F=m*g*sin(a)+k*m*g*cos(a); F=m*g*(sin(a)+cos(a)); A=F*S; m=60; a=45; g=10; k=0,2; </span>
pV=vRT
V=vRT\p
V=1*8.31*300\4*10^5=2493\4*10^5=623.25*10^-5 (м3)
A1=k*x1^2/2
A2=k*X2^2/2
A2/A1=(X2/X1)²
A2=A1*(8/5)²=30*64/25=76,8 Дж