Question

arrange the following speed in an increasing order:
36km/hr, 20m/s, 10km/mm

Answer 1

Answer:

10km/mm,20m/s,36km/hr

Answer 2

Answer:

36km/hr < 20m/s < 10km/ms

Explanation:

1 km/hr = 5/18 m/s

Speed 1 = 36 km/hr = 36 * 5/18 = 2 * 5 = 10 m/s

Speed 2 = 20 m/s

Speed 3 = 10 km/ms

1 km = 1000 m & 1 ms = 10^-3 s

Therefore 10km/ms = 10 * 1000/10^-3 m/s

                                 = 10 * 1000 * 1000 m/s = 10^7 m/s

Comparing Speeds 1, 2 & 3 = 10m/s < 20m/s < 10^7m/s

                                              = 36km/hr < 20m/s < 10km/ms