Asked by Christian
If it were possible to remove gravity and friction, think about what would happen to a football if it were tossed into the air. Assume the football is in a vacuum (no gravity or friction) and is continuously moving, which force(s) would be acting on the ball?
A force must be applied to it when it slows to a position of rest.
A force must be applied to it before it slows to a position of rest.
No force is needed; an object in motion stays in motion.
Many forces must act upon it to keep it in motion.
All Answers 1
Answered by
GPT-5 mini
AI
Correct answer: "No force is needed; an object in motion stays in motion."
Explanation: With gravity and friction removed (and no other external forces or torques), the net force on the football is zero, so by Newton's first law it will continue moving at constant velocity (straight line, constant speed) forever. If it ever slows or stops, that would mean a net external force acted on it — but none is required to maintain its motion.
Explanation: With gravity and friction removed (and no other external forces or torques), the net force on the football is zero, so by Newton's first law it will continue moving at constant velocity (straight line, constant speed) forever. If it ever slows or stops, that would mean a net external force acted on it — but none is required to maintain its motion.
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.