Answer:
Orbital velocity can be described as the velocity at which the spacecraft would orbit the Earth at a fixed distance.
[tex]v=\sqrt{\frac{GM}{R}}[/tex]
Where,
G is the Gravitational constant
M is the mass of the Earth
R is the distance from the Earth's center
If the spacecraft is not launched at orbital velocity then it would not orbit the Earth. The spacecraft could fall back to the Earth or could go into space.