Question

Có vận tốc sau: V1 = 2000cm/s ; V2 = 36km/h ; V3 = 15m/s ; V4 = 45km/h .Sắp xếp độ lớn các vận tốc theo thứ tự tăng dần

Answer 1

\(2000\left(\dfrac{cm}{s}\right)=72\left(\dfrac{km}{h}\right);15\left(\dfrac{m}{s}\right)=54\left(\dfrac{km}{h}\right)\)

\(\Rightarrow36\left(\dfrac{km}{h}\right)< 45\left(\dfrac{km}{h}\right)< 54\left(\dfrac{km}{h}\right)< 72\left(\dfrac{km}{h}\right)\)

\(\Rightarrow36\left(\dfrac{km}{h}\right)< 45\left(\dfrac{km}{h}\right)< 15\left(\dfrac{m}{s}\right)< 2000\left(\dfrac{cm}{s}\right)\)