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Anything in an orbit is constantly accelerated.

If that sounds peculiar to you, it's because you think 'accelerate' means 'speed up'.

It doesn't. It means 'change speed or direction or both'.

If an object is not moving at a constant speed in a straight line, then it's accelerating.

An object in an orbit is constantly changing direction. So it's constantly being

accelerated, even if its speed never changes.

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14y ago

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