Question

Answer 1

\(\left\{{}\begin{matrix}18\left(\dfrac{km}{h}\right)\\10\left(\dfrac{m}{s}\right)=36\left(\dfrac{km}{h}\right)\\0,02\left(\dfrac{km}{s}\right)=72\left(\dfrac{km}{h}\right)\end{matrix}\right.\)\(\Rightarrow18< 36< 72\)\(\Rightarrow v_1< v_2< v_3\)

Chọn B

Answer 2

C

Answer 3

B. V₁ < V₂ < V₃

Answer 4

\(v_1=18\)km/h=5m/s

\(v_2=10\)m/s

\(v_3=0,02\)km/s=20m/s

\(\Rightarrow v_1< v_2< v_3\)

Chọn B.