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Momentum and Energy

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In the center of our galaxy is a black hole named Sagittarius A* and it has a mass of approximately 8.6x1036kg. A 90 kg astronaut that is 1.5 m tall is falling feet first towards this black hole. If their feet are located 765million meters away from the center of the black hole, what is the difference in the acceleration of gravitybetween their head and their feet? What does this imply is happening to them?18/05/20202physics