Timeline for Is jumping the result of normal force or action-reaction?
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 5, 2015 at 0:23 | vote | accept | Michael Yaworski | ||
| Mar 5, 2015 at 0:23 | comment | added | Michael Yaworski | Your explanation of the normal force makes sense to me. The confusion I had was because my high school physics teacher told me that the normal force was not a reaction force due to gravity. That is true, but I interpreted it incorrectly. Thanks. | |
| Mar 4, 2015 at 22:34 | comment | added | Bill N | "Normal force" is the name we give to the force the ground exerts on the person if we are analyzing all the forces on the person. It would be fair to call the force on the ground a normal force also. It's called the normal force simply because it is perpendicular to contact surfaces, and that is an averaging of all the contact points.The contact forces ARE the interaction forces IS the normal forces. The one on the person by the ground is equal and opposite to the one on the ground by the person, and the pair of them is the N3Law pair. | |
| Mar 4, 2015 at 20:31 | comment | added | Michael Yaworski | Okay, so action-reaction is a bad choice of words. They happen simultaneously in a mutual interaction. They act in both directions between the two objects. Am I correct? But still, jumping is a result of the force you apply on the ground. Whether or not it's called a "reaction force", it is still a force that is a result of the interaction between you and the ground. Correct? And that is unrelated to the normal force? Or is the force you applied to the ground affecting the normal force because you are affecting the structural boundaries by applying more force? | |
| Mar 4, 2015 at 18:19 | history | answered | Bill N | CC BY-SA 3.0 |