Inertia of the moving body tends to make it move on in a straight line, while gravitational force tends to pull it down. …
The more massive the body at the centre of attraction
, the higher is the orbital velocity for a particular altitude or distance.
What happens when orbital velocity increases?
The
Apogee
of your orbit which is the highest part of the orbit will increase in altitude too, and as you keep increasing the velocity, the apogee of your orbit will take place of the raising part P’ of your orbit.
What does orbital velocity depend on?
The orbital velocity of the satellite depends on
its altitude above Earth
. The nearer to Earth, the faster the required orbital velocity.
What factors affect orbital velocity?
As seen in the equation v = SQRT(G * M
central
/ 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.
What is the shape of the orbit when velocity is increased?
An open orbit will have a parabolic shape if it has the velocity of exactly the escape velocity at that point in its trajectory, and it will have the shape of
a hyperbola
when its velocity is greater than the escape velocity.
Which planet has the slowest orbital velocity?
If Pluto had maintained its planet status, it would have the slowest orbital speed at just 10,438 miles per hour. Instead,
Neptune
again wins with an orbital speed of 12,148 miles per hour. Compared to Earth’s 66,621 miles per hour, Neptune is practically sluggish.
Does orbital velocity depend on mass?
No,
orbital velocity does not depend on mass
.
Which is greater orbital or escape velocity?
The
escape velocity
is a multiplicative factor greater than the orbital velocity: v = sqrt(2GM/r) (escape velocity = sqrt(2) * orbital velocity) If an object achieves escape velocity, it leaves its orbit and is no longer gravitationally bound to the object it was orbiting.
What is the orbital velocity of Earth?
This means that in 365.25 days the Earth travels 587.5 million miles. This works out to about 67 thousand miles per hour. This is the speed we travel 24 hours a day, 365.25 days a year. The orbital velocity is
2πR/T
where R is the average radius of the orbit and T is the length of the year.
What is the relation between orbital velocity and escape velocity?
The lowest velocity an object must have to escape the gravitational force of a planet or an object. The relationship between the escape velocity and the orbital velocity is defined by
Ve = 2 Vo
where Ve is the escape velocity and Vo is the orbital velocity. And the escape velocity is root-two times the orbit velocity.
What is the value of orbital velocity?
The orbital velocity formula contains a constant, G, which is called the “universal gravitational constant”. Its value is =
6.673 x 10
– 11
N∙m
2
/kg
2
.
What is minimum orbital velocity?
Orbital characteristics
The mean orbital velocity needed to maintain a stable low Earth orbit is
about 7.8 km/s
(28,000 km/h; 17,000 mph), but reduces with increased orbital altitude.
What is the dimensional formula of orbital velocity?
✔G = gravitational constant, M = mass of the body at center,
R = radius of orbit
. Orbital Velocity Formula is applied to calculate theorbital velocity of the any planet if mass M and radius R are known.
What is Kepler’s 3rd law called?
Kepler’s third law – sometimes referred to as
the law of harmonies
– compares the orbital period and radius of orbit of a planet to those of other planets.
What are the important forces required for orbital velocity?
For orbital speed derivation, both
the gravitational force and centripetal force
are very important. Gravitational force (Fg) is the force exerted by the body at the center to keep the satellite in its orbit. Centripetal force (Fc) justifies the existence of circular motion.
What affects orbital shape?
A planet’s orbital speed changes, depending on how far it is from the Sun. The closer a planet is to the Sun, the stronger the Sun’s
gravitational pull
on it, and the faster the planet moves. The farther it is from the Sun, the weaker the Sun’s gravitational pull, and the slower it moves in its orbit.
