What is gravity? - NASA
Newton's "law" of gravity is a mathematical description of the way bodies are observed to attract one another, based on many scientific experiments and observations. The gravitational …
Learn All About Earth's Gravity - Physics Forums
Jan 2, 2016 · Gravity in Earth’s interior In addition to knowing the gravitational field at different points on the surface, we also have information about how the gravitational field changes as …
Understanding the General Relativity View of Gravity on Earth
Jul 20, 2015 · Often students have difficulty reconciling the General Relativity (GR) view of gravity versus their own experience with gravity on the surface of Earth.
Why Is Acceleration Due to Gravity a Constant? - Physics Forums
Sep 15, 2015 · For two objects with masses, the gravitational force on mass 1 due to the gravitational force of mass 2 can be written as where are the masses of object 1 and 2 …
Why normal force is not equal to gravity? • Physics Forums
Oct 7, 2023 · We learned that normal force equal in magnitude as mg and opposite direction, it is reaction force to gravity. 1.If normal force is not equal gravity, isnt this violate newton 3. law …
Is Gravity a Force? Modern Physics Explained
Jan 3, 2008 · In General Relativity an object follows a geodesic path unless acted upon by a force. In the vicinity of the massive object the geodesic is a curved path (in this case the orbital …
Questions: about the force of gravity. - Physics Forums
Jul 4, 2008 · The discussion revolves around two questions regarding the force of gravity. For the first question, the consensus is that statement (c) is false, as it incorrectly suggests that more …
Force required to accelerate upward against gravity
Aug 31, 2020 · So I am working on a project where I am attempting to accelerate an object upward Against Gravity but I am having trouble figuring out the math behind the...
Normal Force and Force of Gravity: When and why are they equal?
Mar 17, 2010 · Homework Statement My teacher explained to my class that Normal force equals Force of Gravity. Given a free body diagram on a flat surface, Normal force is directed up, and …
Explaining Fg = mg: Net Force, Mass and Acceleration
Sep 12, 2009 · Homework Statement we can say that the force of gravity is equal to mass times acceleration were the acceleration is equal to gravity sense gravity is...