Question

problema
un leopard aleargă uniform de 54km/h. ce distanță parcurge leopardul timp de 5 min?​

Answer 1

Răspuns:

54km/h=54000m/3600s=15m/s

5 min=300 secunde

Distanta =viteza *timp=15*300=4500 m

Answer 2

$v=54 \ km/h =15 \ m/s \\ t=5 \ min =300 \ s \\ v=\frac{d}{t} \\ \Rightarrow d=v \cdot t \\ \Rightarrow d=15 \ m/s \cdot 300 \ s \\ \Rightarrow \boxed{d=4 \ 500 \ m=\bold{4,5 \ km}}$