M1/2*x = m2*(l-x)
m1*x = 2m2*(l-x)
(m1+2m2)*x = 2m2*l
x = 2m2*l/(m1+2m2)=2*3*0,6/(2+2*3)=2*3*0,6/(2+2*3)=<span>
0,45 </span>м = 45 см
Ускорение:
a = (V-Vo)/t = (800 - 0)/10 = 800/10 = 80 м/с²
P = m*a = 200*80 = 16 000 Н или 16 кН
P=p*g*h=13600*10*3,5=489,6*10^3 Па
1/12+1/12+1/6=1/R
4/12=1/R R=3 Ом
U=J*R=3*0.2=0.6 B
<span> J1=J2=0.05А J3=0.1A </span>