Odpowiedzi

2010-03-11T23:00:14+01:00
1 min = 60s
1min₂ = 60s*60s = 3600

72m=7200cm

7200/3600 = 2

Odp.: D - 2cm/s₂
2010-03-11T23:02:27+01:00
1 m = 100 cm
1 min = 60 s
72 m /min² = 7200 cm / (60 s)² = 7200/3600 cm/s² = 2 cm/s²

Odp. d)