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
1 answer
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.
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