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 …
Why 9.8m/s^2? The Mystery of Gravity's Constant Acceleration …
Apr 7, 2004 · The gravity acceleration anywhere in the universe is: g' = G\frac {M} {r^2} Where G is the gravitational constant, M is the mass of the object that is pulling you and r is your …
Is Gravity Really a Force? A Look at General Relativity's Perspective
May 14, 2020 · Classically (meaning non-quantum and non-GR) gravity is described by Newton's law of Universal Gravitation, in which gravity is certainly a force. However, General Relativity …
How Do Gravity, Force, and Buoyancy Interact? - Physics Forums
Aug 29, 2003 · Click For Summary This discussion clarifies the interactions between gravity, force, and buoyancy. Gravity, described by the formula Fg=G* ( (m1*m2)/ (d*d)), is the …
Understanding G-Force: x,y and z Components Explained
May 8, 2019 · The discussion centers on understanding the x, y, and z components of G-Force as measured by the Physics Toolbox app. Participants clarify that G-Force acts in three …
Normal force at the top of a vertical loop - Physics Forums
Oct 17, 2022 · From the equation for centripetal force, I can see that the centripetal force is proportional to v^2. Does this have something to do with why there is a normal force at the …
Gravitational Force (Why the negative sign?) - Physics Forums
Aug 9, 2007 · The discussion clarifies why gravitational forces are represented with a negative sign, emphasizing that this is a convention based on the coordinate system used. Gravitational …
If gravity is not a force, what is holding us down? - Physics Forums
Jul 3, 2021 · The discussion centers on the concept that gravity is not a force but rather a curvature of spacetime, as articulated in Einstein's General Relativity. Participants emphasize …
Gravity Force Calculation: m1, m2 & r^2 - Physics Forums
Jul 22, 2004 · The discussion centers on the gravitational force calculation using the formula F = (G * m1 * m2) / r^2, where G is the gravitational constant (6.673E-11). The participants clarify …
Can Gravity Really Repel? Understanding Gravitons and Common ...
Sep 27, 2005 · Gravity is a purely attractive force. I don't even think that the theoretical 'negative matter' would be gravitationally repulsive, since gravity is a characteristic of space-time rather …