Question

Điền vào chỗ trống các câu sau:

a) 5m/s = … km/h b) 72km/h = … m/s

b) 15m/s = … km/h d) … km/h = 10m/s

Answer 1

Ta có 1m/s=3,6k/h

➜a) 5m/s = 18 km/h b) 72km/h = 20 m/s

b) 15m/s = 5 km/h d) 36 km/h = 10m/s

Answer 2

Giải a)

\(5\left(\frac{m}{s}\right)=18\left(\frac{km}{h}\right)\\ 72\left(\frac{km}{h}\right)=20\left(\frac{m}{s}\right)\)

b)

\(15\left(\frac{m}{s}\right)=54\left(\frac{km}{h}\right)\\ 36\left(\frac{km}{h}\right)=10\left(\frac{m}{s}\right)\)

Answer 3

ta có \(1m/s=\frac{1}{1000}.3600=3,6km/h\)

\(1km/h=\frac{1000}{3600}=\frac{5}{18}m/s\)

a) 5m/s = 18km/h

b) 72km/h = 20m/s

c) 15m/s = 54km/h

d) 36km/h = 10m/s

Answer 4

Ae ơi tik tui vs