z.1 30 m/s= ? km/h

Witam! z.1 30 m/s= ? km/h 30m/s = 30x1000/3600 = 30000/3600 = 8i 2200/3600km/h pzdr.

30 m/s s = 30 m/ = 30 1000 km= 0.03 km t = 1 s = 2/3600 h V = s/t V = 0, 03 km/ 1/36000 h = 108 km/h lub II sposób: 1 m = 1/1000 km 1 s = 1 /3600 h 30 m/s = 30/1000 km/ 1/3600 h= 3/100 * 3600/1 = 108 km/h