What is the proper vector form for the Gravity Formula?
2015年11月2日 · The words centripetal force stand for the net result of real forces in the case where the net force points to some center. For example, on a ferris wheel, there are two forces on a person: gravity (due to the earth) and the normal force (due to the chair). The vector sum of these points toward the axis, so we call the sum the centripetal force.
forces - Gravity in vector - Physics Stack Exchange
2018年1月22日 · The direction of the gravitational force on mass B will always be in the $-\hat{r}$ direction, where $\vec{r}$ is a vector that describes the location of mass B. Share Cite
split gravitational force into x, y, and z componenets
For this application, I'd suggest using the actual gravitational force equation, for vector quantities: $$\vec{F} = \frac{Gm_1m_2}{r^3}\vec{r}$$ Here $\vec{r}$ is the vector pointing from the source object to the point where you are computing the force. So if you're computing the force on object 2 (caused by object 1), you'll have
In GR, what is Gravity? A force or curvature of spacetime?
2024年11月25日 · It is usually said that in Newtonian gravity, gravity is a force, but that in GR, gravity is not a force and is explained by curvature. However this is a false dichotomy. Instead, gravity is explained by curvature when we use a modern geometrical description -- that is, a manifold with connection $\nabla$-- of either theory. (A connection tells ...
general relativity - Is gravity a tensor? - Physics Stack Exchange
2022年11月23日 · The Higgs boson is a scalar boson & the interaction it mediates isn't called as a force. A force is a vector in the usual description. But the hypothesized graviton is a tensor boson. Would that mean gravity is not a usual force but may be a …
mass - Is weight a scalar or a vector? - Physics Stack Exchange
2017年3月2日 · If "weight" is understood as a force of gravity, then it is a vector, because force is a vector. Mass is the scalar value that can be used to compute the gravity force. When gravity force is computed (F = mg), scalar (m) is multiplied to vector (g), making the result a vector.
forces - Why the $r$ is cubed in the vector notation for of …
2016年6月1日 · It's just one way textbooks write it, and is exactly equivalent to the right-most expression, which is probably the most obvious way to write the gravitational force in vector notation. Share Cite
Newtonian gravity equation in a 2 dimensional world
So the gravitational force/vector field reduces with the distance squared. Now this is the formula in 3 spatial dimensions - and I always picture it as a point with gravitational field lines moving outward.
newtonian gravity - Is the gravitational force for an object on the ...
2020年5月21日 · The force vector would only point towards the centre of the Earth if it were spherically symmetric and non-rotating (except perhaps at the equator or poles). There are significant deviations from this and local gravity can deviate by tenths of a degree from a line towards the centre of the Earth.
gravity - Which one of the two objects does the gravitation force ...
2015年7月25日 · The only time you'd use only one vector pointed toward the more massive body is if the less massive has such a weak gravitational field that you choose to ignore it, or if it is a test particle affected by another gravitational field.