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If an astronaut in space pushes off the satellite she is workin on, what will happen to her if there are no other acting external forces?

- she will eventually slow down and come to a stop
-she will continuously speed up
- she will move in the same direction at the same speed forever.
-she will periodically change direction

If there are no other acting external forces, the astronaut will continue to move in the same direction at the same speed forever. According to Newton's first law of motion (the law of inertia), an object in motion will remain in motion unless acted upon by an external force. Since there are no external forces to act upon the astronaut, she will continue to move with the same velocity.

If an astronaut in space pushes off the satellite she is working on, and there are no other acting external forces, she will continuously speed up. This is due to the conservation of momentum. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. When the astronaut pushes off the satellite, she applies a force to it, and in return, the satellite applies an equal and opposite force to her. This force propels the astronaut forward, causing her to continuously accelerate. However, it is important to note that in the absence of any external forces, the astronaut will not be able to change her direction unless she uses other means, such as using a thruster or interacting with another object in space.