Mamatha G.

asked • 12/16/24

This is a circular motion and gravity question

Lets assume we have an imaginary system with a Sun that has a mass of 50 million kilograms, and a planet orbiting 20 meters away from this tiny sun with a mass of 1 million kilograms. Calculate the period of this tiny planets revolution around its tiny sun in hours.

You will need both circular motion and gravity for this.


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Avery E. answered • 12/17/24

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Grigoriy S.

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There is no such thing as centripetal force. The only force that acts between the bodies - force of gravitational attraction. Better to use the definition of g in this case. And final formula could be simplified. You do not need to rase the distance to the third power and then take square root.
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12/25/24

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