Question

Va rog ajutați-mă! ​

Answer 1

Răspuns:

1. v(m/s)= 5400/2700 = 2

1. v(km/h)= 2m/s = 2*18= 36/5= 7.2 km/h

2.d(m) = 28 m/s (100 km/h) * 5400 s= 151 200 m

3. t(s) = 1080/180=6 s

3. v(km/h) = 180*18= 3240/5= 648 km/h

4. d= 0.5*4000=2000m

4. v(km/h)=0.5*18=9/5=1.8 km/h