Question

I have few queries pls help answering them
a)why the earth revolve around sun?
b)why sun do not revolve around earth?
c)why moon do not fall on earth??

Answer 1

a) earth revolves around the Sun because due to the gravitational field.

b)Sun does not revolve around earth because the gravitational pull of earth is not stronger than the gravitational pull of the Sun.

c)earth and moon repel each other due to poles

Answer 2

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a) the gravity of the Sun keeps them in theirorbits. Just as the Moon orbits the Earthbecause of the pull of Earth's gravity, theEarth orbits the Sun because of the pull of the Sun's gravity.

b) we know that mass and acceleration are inversely proportional , since mass of Earth is less than Sun then its acceleration will be more than the sun .similarly the mass of sun is quite large than that of earth that is why the acceleration will be very less . That is why we see Earth revolving around the sun not the sun revolving around Earth .

c)Well, it falls down all the time, but it goes sideways fast enough to miss the Earth. This neat trick is what keeps the International Space Station and any satellite you can think of up in orbit. It’s also the same thing that keeps the planets including Earth in orbit around the Sun so that they don’t fall into the Sun to get stir-fried. And it keeps the Sun in orbit around the Galactic Center.

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