T=2*pi*sqrt(L/g) L=T^2*g/4*pi^2=4^2*9,8/4*3,14^2=4 м
F=m*a=m*xm*w^2=m*xm*4*pi^2/T^2=0,2*0,05*4*3,14^2/4^2=0,006 H
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T=2*pi*sqrt(L/g) L=T^2*g/4*pi^2=4^2*9,8/4*3,14^2=4 м
F=m*a=m*xm*w^2=m*xm*4*pi^2/T^2=0,2*0,05*4*3,14^2/4^2=0,006 H