Why aren't gravity (weight) and normal force a action/reaction
Answer (1 of 13): No, they are separate actions, but not an action/reaction pair. Gravity is monopolar, having no “equal and opposite reaction.” If you hit a baseball, the action/reaction pair is the bat (and your body) and the baseball. If you shoot a shotgun, the “kick” against your shoulder is
![](https://preview.redd.it/a-level-physics-mechanics-why-is-are-these-the-triangles-v0-9zy4b7duzt6b1.jpg?auto=webp&s=28841290660c247df55fc874c630b9ffd8360c39)
A-level physics: mechanics]: Why is are these the triangles you from to calculate component of forces in slopes? : r/HomeworkHelp
![](https://cdn.mos.cms.futurecdn.net/vhebaR9zNU8aqitgRp2z3k.jpg)
What Are Centrifugal & Centripetal Forces?
Newton's Third Law
![](https://images.interestingengineering.com/1200x675/filters:format(webp)/img/iea/o2Gz0pQnwp/800px-bouncing-ball-strobe-edit.jpg)
What Are the Physics behind Bouncing Balls?
![](https://i.stack.imgur.com/wc82o.jpg)
newtonian mechanics - Conceptual Physics - Action Reaction Forces and Acceleration of an object on a uniform slope ramp - Physics Stack Exchange
![](https://i.stack.imgur.com/0i97d.jpg)
newtonian mechanics - Why is normal force not the same as newtons third law - Physics Stack Exchange
Newton's Third Law
![](https://www.phy.cuhk.edu.hk/contextual/mechanics/for/action_reaction/6-03.gif)
Mechanics - Force and Motion - Action and reaction - Page 2
Is there is any way to increase normal force without increasing gravitation? - Quora
![](https://slideplayer.com/slide/9210474/27/images/9/Newton%E2%80%99s+2nd+Law+for+Lincoln%3A.jpg)
Weight & Normal Force Weight The force of gravity on an object. - ppt video online download
![](https://i3.ytimg.com/vi/SfZYuKpQyws/maxresdefault.jpg)
AK Lectures - Weight and Normal Force
![](https://cdn.kastatic.org/ka-perseus-images/987f71134b05f508f3c71ae7e2003188b9658919.png)
Newton's third law review (article)
![](https://uploads-cdn.omnicalculator.com/images/normal_force/down_force.png?width=425&enlarge=0&format=jpeg)
Normal Force Calculator Flat and Inclined Surface