[Search] gravity & aerodynamic drag formulas

[Bonanza123d]

I need to know how to calculate gravity, and how to calculate aerodynamic drag on a object.

 

[Urwumpe]

I need to know how to calculate gravity, and how to calculate aerodynamic drag on a object.

ah...yes...

Wouldn't it be better for you to start with a real physics text book? Because even if I tell you the formulas, I suspect you won't understand them (since they are more than just the math, but also the meaning of the symbols). also in which form do you need them? scalar or vector?

do you need Galilean Gravity, Newtonian Gravity or Unified Field Theory?

Do you want the drag in in thin foil theory, sweep theory or lifting line theory?

 

[agentgonzo]

Newtonian Gravity: f = G * m_1 * m_2 / r^2
Did that help you?

 

[Izack]

Newtonian Gravity: f = G * m_1 * m_2 / r^2
Did that help you?

A bit more in depth:

[math]F_{g}=\frac{Gm_{1}m_{2}}{r^{2}}[/math]

Where [math]F_g[/math] is the gravitational force acting between two point masses [math]m_1[/math] and [math]m_2[/math] separated by distance [math]r[/math]. [math]G[/math] is a constant used to correct the results to correspond with reality, 6.673e-11. The units are typically Newtons for force, kilograms for mass, and metres for radius, which gives G the units [math]\frac{Nm^{2}}{kg^{2}}[/math] or [math]\frac{m^{3}}{kg \cdot s^{2}}[/math]

But yes, like Urwumpe said you had best start with a physics textbook, or better yet take Physics when you get to high school. Newton is basic stuff, but will require algebra, trigonometry and most importantly an ability to think deeper than 'how to calculate gravity.'

P.S. I assumed you meant gravitational force in Newtonian terms. If you mean gravity itself, start here: http://publicliterature.org/pdf/relat10.pdf