A satellite in a closed orbit has the greatest speed when it's closest to
the planet, and the lowest speed when it's farthest from the planet.
A satellite in an elliptical orbit gains speed when it moves closer to the body it is orbiting due to the conservation of angular momentum. This increase in speed occurs as the gravitational force from the body pulls the satellite inwards, causing it to accelerate.
If the path is perfectly circular, yes, the speed is constant. This should not be confused with the velocity, because while speed is constant, its direction is not; therefore velocity is always changing.
Yes. Gravity affects EVERYTHING.
If a satellite is in an elliptical orbit around the Earth, the Earth will be at one of the focii. The speed of the satellite will then constantly be changing. It will move the fastest when it is nearest to the Earth (perigee) and slowest when it is furthest away (apogee).
The speed of a satellite changes in an elliptical orbit because the satellite moves faster when it is closer to the central body due to gravitational acceleration, and slower when it is farther away. This change in speed is necessary to balance the varying gravitational force experienced by the satellite at different points in its orbit.
in the orbit of a planet there is a point called perihelion which is closest point to the sun and aphelion which is furthest from the sun . Moment of a planet in it's elliptical orbit reaches it's maximum in perihelion
If the speed at every point of the new orbit is higher than the speed at every point of the old one, then the orbit is smaller, but it can have the same shape. ============================================ Another contributor added: going too fast may give the satellite an elliptical orbit, or may cause the satellite to escape the gravity of Earth if the velocity is too great
The linear velocity of a satellite in an elliptical orbit increases as it moves from perigee (closest point to Earth) to apogee (farthest point from Earth) because the gravitational pull is weaker at apogee, causing the satellite to speed up. At perigee, the satellite moves faster due to the stronger gravitational pull from Earth.
YES As height increases, speed of satellite decreases.
The speed of the satellite will remain the same regardless of doubling the mass, as long as the radius of its orbit remains constant. The speed of the satellite in orbit is determined by the gravitational force between the satellite and the celestial body it is orbiting, not the mass of the satellite itself.
The mass of a satellite does not affect its orbit. The orbit of a satellite is determined by its speed and the gravitational pull of the object it is orbiting around, such as a planet. The mass of the satellite itself does not play a significant role in determining its orbit.
Because that's the way gravity works. If you take Newton's simple formula for the mutual gravitational force between any two objects, and if you have enough calculus and geometry to be able to do it, you can massage it around and show that closed orbits must be ellipses, and that the orbital speed must be greatest when the separation is smallest.