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  1. Where's the action force if the normal force is a reaction force ...

    Jun 6, 2018 · The discussion clarifies that the normal force is not a reaction force to gravitational force, as the gravitational force acts on an object from Earth, while the reaction force is the object's force on …

  2. Is the Normal Force Always Equal to the Weight of an Object?

    Feb 10, 2012 · The normal force is not the net force acting on a system; rather, it is a component of the net force, which is the sum of all forces acting on an object. Additionally, the term "solid" is relevant …

  3. What Is the Normal Force in Newtonian Mechanics? - Physics Forums

    Oct 25, 2010 · Hi everyone. I just started learning some basic Newtonian mechanics and several questions arose. Hope you could help me with it. Thank you. 1. What exactly constitutes the "normal …

  4. Normal force acting on a ladder lying against a wall

    Aug 1, 2010 · Hi.. I am just confused normal forces. The definition of normal force is always perpendicular to the surface. But when we draw a free body diagram for a ladder lying against the …

  5. Reaction force of and its relation to normal force and friction

    Oct 6, 2022 · Hello, When we consider a block sitting on a surface, the gravitational force ##W## and the normal force ##F_N## are applied to the block. Both equal i magnitude and opposite in direction. …

  6. Why is normal force always perpendicular to the surface?

    Mar 18, 2016 · Why is normal force always perpendicular to the surface? I understand that normal force is the upward reaction force by a surface due to an external action force pushing the surface. Then, if …

  7. Understanding Normal Forces on Horizontal, Vertical, and Diagonal ...

    Nov 18, 2017 · The discussion centers on the concept of normal force, emphasizing its role in preventing objects from falling through surfaces, regardless of their orientation. Normal forces act …

  8. Frequently Made Errors in Mechanics: Friction - Physics Forums

    May 8, 2015 · Definition: The normal force that body A exerts on body B is that force of minimum magnitude which suffices to prevent penetration of its surface.

  9. What are Reaction Forces and how do they relate to Newton's third law ...

    Jul 24, 2014 · Definition/Summary Between two bodies in contact, there is a pair of Reaction Forces. They are always equal but opposite (this is precisely Newton's third law), and so it is usual (though …

  10. How Does a Weighing Machine Measure True Weight? - Physics Forums

    May 2, 2011 · A weighing machine is measuring the normal force equal and opposite the total force experienced by the object being weighed at the face where the machine and the object meet. Even …