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How does Newtons law of gravitation explain why a planet would sweep out equal amounts of area in equal amounts of time?
Wiki User
∙ 11y ago
When I was in school learning to derive that fact, it took vector calculus
and some pretty serious geometry to do it.
The answer can't be presented here, for 3 main reasons that I know of:
1). Vector calculus is somewhat beyond the scope of this website.
2). I don't remember how to do it.
3). I don't have any other simpler way to explain it.
More information: Newton's Law of Gravitation is part of it and some calculus is needed, but the most important thing is the fact that "angular momentum" must be conserved. I would say that it is the "law of conservation of angular momentum" that explains this phenomenon (which is "Kepler's second law of planetary motion").
Wiki User
∙ 11y ago
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What planet was predicted based on gravitational forces and newtons laws?
The planet Neptune was predicted based on discrepancies in the orbit of Uranus, which led astronomers to deduce the presence of another planet influencing its motion. Using Newton's laws of motion and gravitation, astronomers calculated the position of Neptune, which was later confirmed through observation.
What would the mass of an astronaut with the weight of 80 kg be on a planet?
The mass of an astronaut would remain constant, so it would be 80 kg regardless of the planet they are on. Weight, on the other hand, is the force due to gravity acting on the mass of the astronaut, so it would vary depending on the gravitational pull of the planet.
Which planet has gasses land masses and large amounts of surface water?
Earth is the planet that has gases, land masses, and large amounts of surface water. It is the only known planet to have these three characteristics in such abundance.
Discuss which factors determine the force of gravity between a planet and a star?
The force of gravity between a planet and a star is determined by the masses of the planet and the star, as well as the distance between them. According to Newton's law of universal gravitation, the force of gravity is directly proportional to the product of the masses of the two objects and inversely proportional to the square of the distance between their centers.
Which planet has gases landmasses and large amounts of surface water?
Earth.
Was there any observations of the planet mercury which could not be explained by newtons theory of gravity?
yes there were observations of the planet mercury but were hard to explain by Issac newtons theory of gravity as scienctists didn't have enough information to investigate more on the subject.
What is the planet with the most gravitation?
Jupiter
What planet was predicted based on gravitational forces and newtons laws?
The planet Neptune was predicted based on discrepancies in the orbit of Uranus, which led astronomers to deduce the presence of another planet influencing its motion. Using Newton's laws of motion and gravitation, astronomers calculated the position of Neptune, which was later confirmed through observation.
What would the mass of an astronaut with the weight of 80 kg be on a planet?
The mass of an astronaut would remain constant, so it would be 80 kg regardless of the planet they are on. Weight, on the other hand, is the force due to gravity acting on the mass of the astronaut, so it would vary depending on the gravitational pull of the planet.
The force between a planet and a spacecraft is 1 million newtons.What will the force be if the spacecraft moves to half its original distance from the planet?
The force will increase by a factor of 4, resulting in a force of 4 million newtons between the planet and the spacecraft when the spacecraft moves to half its original distance from the planet. This relationship is governed by Newton's law of universal gravitation, which states that the force is inversely proportional to the square of the distance between two objects.
If the planet has less gravitation pull does that effect the speed it orbits around the Sun?
No. A planet's gravitational pull is determined by the planet's mass. A planet's orbital speed is determined by the the mass of the Sun and the planet's distance from the Sun.
Does a planet need to rotate to be considered a planet?
A planet is a celestial body that does not emit substantial amounts of radiation and that circulates around a star (which DOES emit substantial amounts of radiation)
Why can the sun exerts its gravitation on all of the planet?
Because the planets are close enough to the sun to be affected by its gravitational field.
Would a magnet stick to the moon?
Yes, just as it sticks to planet Earth. Not because of its magnetism, but because of the force of gravitation.Yes, just as it sticks to planet Earth. Not because of its magnetism, but because of the force of gravitation.Yes, just as it sticks to planet Earth. Not because of its magnetism, but because of the force of gravitation.Yes, just as it sticks to planet Earth. Not because of its magnetism, but because of the force of gravitation.
Will an object weigh more newtons on another planet?
It would depend on which two planets you are comparing.
Which planet gravitation pull equals that of the earth?
Of the eight planets in orbit about our sun, Venus has gravity almost as strong as ours.
Which planet has a weight of 1225 Newtons?
There are probably meteors, small asteroids, or tiny comets that might weigh 1225 newtonson the surface of a moon or planet, but no "planet" would. There are people who weigh morethan that!
