Question

facete problemele 4'7'10 va rog

Answer 1

Salut,

Problema 4, vitezele sunt constante, deci:

$v_{med}=\frac{d_{total\check{a}}}{t_{total}}=\frac{d_1+d_2}{t_{total}}}=\frac{v_1\cdot t_1+v_2\cdot t_2}{t_{total}}=\\=\frac{v_1\cdot\frac{t_{total}}{3}+v_2\cdot\frac{2\cdot t_{total}}{3}}{t_{total}}=\frac{v_1}{3}+\frac{2\cdot v_2}{3}$

Te las pe tine să faci calculele.

Green eyes.