The speed to let the rocket enter the orbit is ...

vI = 7,91 km/s
vII = 11,19 km/s
vIII = 16,7 km/s
Depends on the weight of the rocket
And cosmic velocity - also referred to as the circular velocity, it is the speed that should be given to the body to enter into orbit around Earth. If a rocket launches from the surface of the earth, then it has to get at least 7.9 kilometers per second to get into orbit.
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Answers by country

vI = 7,91 km/s
vII = 11,19 km/s
vIII = 16,7 km/s
Depends on the weight of the rocket
answers
flagAustralia
55%
20%
20%
5%
20
flagIndia
40%
33%
8%
16%
101
flagGreece
37%
18%
18%
25%
16
flagthe United Kingdom
36%
18%
21%
21%
33
flagSwitzerland
35%
23%
29%
11%
17
flagPakistan
33%
16%
25%
25%
12
flagthe United States
28%
28%
24%
18%
53
flagPoland
18%
33%
15%
31%
5278
flagAustria
23%
28%
28%
20%
39
flagGermany
19%
30%
16%
32%
256
flagthe Netherlands
0%
50%
20%
30%
10