Algodoo

by **francky380a380** » Sat Apr 19, 2014 2:10 pm

Hi every one, a simple question, can I find the gravity center of my system composed by many boxes?
I tried to selected all the boxes and to "put a thruster on the gravity center" but it put a thruster on each gravity center.

Can you help me please, thank you

by **Kilinich** » Sat Apr 19, 2014 7:26 pm

http://en.wikipedia.org/wiki/Center_of_mass
Make sum of vector pos * mass and divide by summ of mass.

by **francky380a380** » Sun Apr 20, 2014 7:01 pm

Thank, I will try this

by **francky380a380** » Mon Apr 21, 2014 8:04 pm

I know it works but i have 190 boxes T_T I think it will be conplicated.

But, now I have an other question. What can I use to make a plane fly? Now I use a simple thruster with a ln(velocity) function [and a limit to do not make the plane climb up to much, and have a stably flight]. This thruster must be placed in the gravity center (that's why i asked).

However, do you know some other solutions ?

Thanks