Different ways to calculate force, GPE

[physicsman7]

Different ways to calculate force, GPE...

Homework Statement

Different ways to calculate force,mass,Gravational Potienal Energy,separation distance

Homework Equations

The Attempt at a Solution

Not sure how to find new ways to calculare these other than the already known formulas like
G(m1)(m2)/r^2

 

[ritwik06]

Homework Statement

Different ways to calculate force,mass,Gravational Potienal Energy,separation distance

Homework Equations

The Attempt at a Solution

Not sure how to find new ways to calculare these other than the already known formulas like
G(m1)(m2)/r^2

We shall be glad if you state clearly what exactly you want.

 

[physicsman7]

I want to know a diffrenet formula that can be used to caluclate those things

Different ways to calculate force,mass,Gravational Potienal Energy,separation distance

 

[v0id19]

Well, all of these can be found many ways, and it's kind of unclear what you want.

For example:
$$\Sigma F = ma$$ gets you the force if you have mass and acceleration.
F_g=mg gives you the force on an object due to gravity.
$$E=\frac{k q_1 q_2}{r^2}$$ gives you the electric field (which is a force)
$$F_g=\frac{g M m}{r^2}$$ is the general force of gravity.
and there are many more.

Mass can be calculated from lots of things, assuming you know other variables--kinetic energy, certain potential energies, certain forces, net force, etc.

GPE can be found using the generic equation $$U_g=-\frac{g M m}{r}$$, by total energy minus everything that's not GPE, U_g=mgh, integrating force, etc

Separation distance (if I am interpreting it correctly) can be found by knowing the result of most of the equations I have already listed and solving for r and other ways.

 

[physicsman7]

thanks, sorry I am also a little unclear withe question is as well it wants to know new ways to calculate all those things that's all it says but thanks for the help