Imagine two flywheels in space connected via a mechanism which ensures they spin in opposite directions.

An observer on a space platform at rest to the flywheels observes two incoming cannonballs from the right approaching the flywheels.

Each of the flywheels will capture one cannonball and lock it with a mechanism attached on the edge of the flywheels.

The flywheels weight 500kg and have a radius of 1 meter.

The cannonballs weight 100kg and have a radius of 20cm. They approach the flywheels at 10 m/s.

here is a picture to give a little better understanding of the above

http://imgur.com/E98x6ff

I have many questions about the outcome of this scnenario, but let me begin with a more general one.

How would the observer on the space platform, at rest to the flywheels which are not spinning before the cannonballs hit, see the flywheels behave once they captured the cannonballs?

An observer on a space platform at rest to the flywheels observes two incoming cannonballs from the right approaching the flywheels.

Each of the flywheels will capture one cannonball and lock it with a mechanism attached on the edge of the flywheels.

The flywheels weight 500kg and have a radius of 1 meter.

The cannonballs weight 100kg and have a radius of 20cm. They approach the flywheels at 10 m/s.

here is a picture to give a little better understanding of the above

http://imgur.com/E98x6ff

I have many questions about the outcome of this scnenario, but let me begin with a more general one.

How would the observer on the space platform, at rest to the flywheels which are not spinning before the cannonballs hit, see the flywheels behave once they captured the cannonballs?

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