- #1
The formula for calculating orbital velocity is V = √(GM/R), where V is the orbital velocity, G is the gravitational constant, M is the mass of the central body, and R is the distance between the craft and the central body.
Orbital velocity is inversely proportional to the distance between the craft and the central body. This means that as the altitude increases, the orbital velocity decreases. Therefore, a craft at 4km above the Moon's surface would have a lower orbital velocity than a craft at a lower altitude.
The orbital velocity of a craft at 4km above the Moon's surface can be calculated using the formula mentioned in the first question. However, it also depends on the mass of the Moon and the specific altitude of the craft. On average, the orbital velocity at this altitude is around 1.6 km/s.
The orbital velocity of a craft at 4km above the Moon's surface is significantly lower than Earth's orbital velocity. This is because the Moon has a much lower mass and gravitational pull compared to Earth, resulting in a lower required orbital velocity for a craft to maintain its orbit.
Yes, the orbital velocity of a craft at any altitude can be changed by adjusting its speed or altitude. However, changing the orbital velocity requires a significant amount of energy and precise calculations to ensure the craft maintains its orbit without crashing into the central body or drifting off into space.