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Old April 27th 08 posted to sci.physics,alt.philosophy,alt.astronomy,sci.physics.relativity
flamestar[_2_]
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Posts: 8
Default Why do earth not Fall on Sun?

On Apr 27, 3:53*am, Sanny wrote:
When Sun and Earth are attracting each other why do Earth not fall on
Sun.

When we throw a big Stone in air It will Fall Back on Earth.
Simmilarly For Sun Earth is just a piece of Rock? Who do this big rock
Earth Fall onto the Sun Just like the Stones which we throw in air
just come back and hit the Earth?

Simmilarly why not the Moon fall on Earth by the Gravity attration?

Why are the planets revolving round the sun for so many years instead
of just falling onto the Sun?

When we visit Moon on a Rocket Our Rocket Just Falls on Surface of
moon So why these heavenly bodies not falling on Bigger one?

Bye
Sanny

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You assume the Earth isn't moving but it is. So one can also ask as
the Earth is moving very fast why doesn't it leave the sun behind?

Here is how it works,

1. The speed of the Earth means that the Earth will keep travling away
from the Sun.

2. The gravity of the sun means the Earth will be pulled into it.

The answer is as both A and B are right they split the difference and
the Earth does not move away from the sun or fall into it. It stays
the same distance away.
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