Essentially nothing. When the central body is greatly more massive than the object
in orbit around it, (think a planet around a star, or an astronaut space-walking outside
the Shuttle), the orbiting body's mass has no effect on the size or period of its orbit.
Inertia is not a scientific term but the closest measurable quantity is mass.
The mass of an object does not affect its orbital speed and period.
The two forces that work together to keep the planets in orbit around the sun are gravity and inertia.
The planets are held in orbit by the gravity of the Sun, and also because that is what happens when the force of inertia and gravity are combined.
1) The gravitational attraction between the planets and the Sun. 2) The "inertia" of the planets. That's their tendency to move in a straight line unless a force (gravity in this case) acts on them.
orbit n inertia
You are an idiot!
The object would crash into the planet.
The two forces that work together to keep the planets in orbit around the sun are gravity and inertia.
Gravity and inertia
the planets do not orbit the moon but the moon orbits the planets because of gravity and inertia
The sun's gravity is pulling the planets toward it and the planets inertia keeps them moving forward
Gravity and inertia
gravity&inertia
Gravity and Inertia
The planets are held in orbit by the gravity of the Sun, and also because that is what happens when the force of inertia and gravity are combined.
Inertia and gravity
The object would crash into the planet.
Gravity and velocity (inertia) keeps planets in orbit around suns.