What is orbital velocity in km h?
Tangential velocities at altitude
| Orbit | Center-to-center distance | Speed |
|---|---|---|
| Molniya orbit | 6,900–46,300 km | 1.5–10.0 km/s (5,400–36,000 km/h or 3,335–22,370 mph) respectively |
| Geostationary | 42,000 km | 3.1 km/s (11,600 km/h or 6,935 mph) |
| Orbit of the Moon | 363,000–406,000 km | 0.97–1.08 km/s (3,492–3,888 km/h or 2,170–2,416 mph) respectively |
What is the orbital velocity law?
The orbital velocity is directly proportional to the mass of the body for which it is being calculated and inversely proportional to the radius of the body. Earth’s orbital velocity near its surface is around eight kilometres (five miles) per second if the air resistance is disregarded.
How do you find orbital velocity with mass and radius?
As seen in the equation v = SQRT(G * Mcentral / R), the mass of the central body (earth) and the radius of the orbit affect orbital speed.
What is orbital velocity in meters per second?
The Earth’s mean orbital speed, in meters per second (m/s), is obtained by dividing this number by the length of the year in seconds. This can result in either of two figures. A rough, general figure for the Earth’s mean orbital speed is 30 kilometers per second (km/s), or 18½ miles per second (mi/s).
What is the formula for orbital velocity in terms of G and R?
As seen in the equation v = SQRT(G * Mcentral / R), the mass of the central body (earth) and the radius of the orbit affect orbital speed. The orbital radius is in turn dependent upon the height of the satellite above the earth.
How do you use F in MV2 R?
The equation, F = mv 2R, illustrates these relationships:
- the higher the speed v , the bigger the force needed to hold objects in orbit, so the bigger the central acceleration.
- for the same speed, the smaller the radius, or the sharper the curve, the bigger the force and therefore the bigger the acceleration must be.
What is FC MV2 R?
If gravity were somehow “cut” a satellite would move away from the Earth in a straight line. For a mass M with tangential speed v at radius R, the centripetal force is Fc = Mv2/R.