Marinada '23

[lang=hr] Dan je jednakostraničan $\triangle ABC$ dužine stranice $10 \text{m}$. Postavljeni su tri predmeta u vrhove trokuta. Predmet $A$ se u svakom trenutku kreće prema trenutnoj poziciji predmeta $B$ brzinom $1 \text{m/s}$. Na isti način se $B$ kreće prema $C$ i $C$ prema $A$. Nakon koliko sekunda će predmeti biti u istoj točki? [/lang] [lang=en] You're given an equilateral triangle $\triangle ABC$ with side length of $10 \text{m}$. Three objects are placed at the vertices of the triangle. Object $A$ moves towards object $B$ at a speed of $1 \text{m/s}$ at all times. Similarly, object $B$ moves towards $C$, and $C$ moves towards $A$ at the same speed. After how many seconds will the objects be at the same point? [/lang]