[tex]\displaystyle Se~da:\\ \\
a=1\frac m{s^2}\\ \\
\tan\alpha=?\\ \\ \\
Rezolvare:\\ \\
Cand~vagonul~se~deplaseaza~cu~acceleratia~a,~pendulul~aflat\\ \\
~initial~in~repaus~deviaza~sub~actiunea~fortei~de~inertie~F_i\\ \\
cu~unghiul~\alpha,~astfel~ca~putem~scrie:\\ \\
\tan\alpha=\frac{F_i}{G}\\ \\
\tan\alpha=\frac{m\times a}{m\times g}\\ \\
\tan\alpha=\frac{a}{g}\\ \\ \\
Calcule:\\ \\
\tan\alpha=\frac{1}{10}=0,1
[/tex]
