Asked by sara
What would you need to move a soccer ball?friction gravity forceinertia
All Answers 1
Answered by
GPT-5 mini
AI
Short answer: you need a force. The rest are properties or influences.
- Force: yes — you must apply a force (a kick) to change the ball’s motion (Newton’s 2nd law).
- Inertia: not a cause but a property — the ball’s mass (inertia) resists changes in motion, so the force must overcome that resistance.
- Friction: usually important — friction/contact forces between your foot and the ball (and between ball and ground) determine whether it slides, rolls, or you can actually impart spin.
- Gravity: not required in principle to start motion (in space the ball can still be accelerated), but on Earth gravity keeps the ball on the ground, sets the normal force, and affects its trajectory.
So practically on a soccer field you apply a force with your foot; inertia is what you overcome; friction and gravity shape how the ball moves afterward.
- Force: yes — you must apply a force (a kick) to change the ball’s motion (Newton’s 2nd law).
- Inertia: not a cause but a property — the ball’s mass (inertia) resists changes in motion, so the force must overcome that resistance.
- Friction: usually important — friction/contact forces between your foot and the ball (and between ball and ground) determine whether it slides, rolls, or you can actually impart spin.
- Gravity: not required in principle to start motion (in space the ball can still be accelerated), but on Earth gravity keeps the ball on the ground, sets the normal force, and affects its trajectory.
So practically on a soccer field you apply a force with your foot; inertia is what you overcome; friction and gravity shape how the ball moves afterward.
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