Question

In timp de 5min un mobil trece de la viteza 2m/s la viteza 10m/s.Calculati acceleratia miscarii​

Answer 1

$\vec{v}_1=2 \ m/s \\ \vec{v}_2=10 \ m/s \\ \Delta t=5 \ min=300 \ s \\ \vec{a}=\frac{\Delta \vec{v}}{\Delta t}=\frac{\vec{v}_2-\vec{v}_1}{\Delta t} \\ \Rightarrow \vec{a}=\frac{10 \ m/s-2 \ m/s}{300 \ s}=\frac{8 \ m/s}{300 \ s} \\ \Rightarrow \boxed{\vec{a}=0,026\ m/s^2}$