Question

Va rog dau coroana si ma abonez la voi.​

Answer 1

I.

1. in repaus

2. in miscare

II.

90 km/h=90 000 m/3600 s= 25 km/h

1800 cm/min= 18 m/60 s= 0.3 km/h

III.

1. De la 8:10 pana la 9:40 trec 90 de minute, 1+1/2 ore

2. d=150-30=120 km

3. v=d/t=120 km/1.5 h= 80 km/h

IV.

1. 18 km/h= 18/3.6 m/s= 5 m/s

2. d=v*t=5*60*30=9000 m=9 km