well, with what i said, the whole theory of conservation of momentum is completely ignored, so i'll resolve that next. (i pulled the angular momentum from the linear momentum of the collision without changing the momentum post-collision)
so essentially it's a vector perpendicular to the plane, and the impulse will be in that direction. sounds simple enough. now to translate that into java :P
the only part in that i didn't get was "the direction normal to face i". i apologize if this is a newbie question, but what is and how would you calculate the normal direction between to surfaces (planes)
as in the case of a sphere the collision is always between two surfaces perpendicular to each other. so when the two objects collide and the surfaces are not perpendicular the angles will be different, therefore changing the direction of the impulse. of course any collision including a round...
correct me if I'm wrong, but couldn't you treat any elastic collision like an elastic collision, but introduce some angular velocity if the shapes are weird? (which would be a completely different calculation)
Edit: any elastic collision as an elastic collision between spheres
Edit 2: if the...
how would you calculate elastic collisions for any object of any shape. would you need to have the angle of the surface at the collision point of the two objects?
Alrighty, I'm working on a three dimensional physics simulator that does every operation in spherical coordinates and vectors, and I'm stuck on figuring out elastic collisions. are elastic collisions essentially trading momentum between the two colliding bodies? I'm assuming not, but i can't...
ok, i figured it out. i kept on adding to the acceleration due to gravity to the previously calculated acceleration. rookie mistake. the database will be useful still. anyways, I'm not sure about with all the other planets, but with just the Earth orbiting the sun, the Earth actually pulls the...
ah, yes. i should probably mention that my suspected reason for the Earth not rotating properly is that the sun is not a fixed body, i noticed that the sun is actually moving towards the earth. so i need the rest of the system to minimize the suns movement, therefore hopefully removing the...
I wrote a program in java to simulate gravity in 3 dimensional space between any number of objects, and i wanted to test if it works. i managed to find the data for the Earth and the sun and tried those out and the sun acted as a slingshot for the earth. i would like to know if i could find...
This is DC current. But is there a such thing as a low voltage motor? I haven't seen such a thing before. Maybe I'm not looking hard enough. The capacitor idea sounds good, I'll try that next chance I get.. I may be thinking of something else, but isn't transformer modulation for AC?
I am working on a project where i have a single power source that is rather unstable and small, but produces a lot of current. the power source varies between 10 and 200 millivolts at about 2000 amperes and i need it to be stepped up to a steady 5V voltage. I'm not going to post any of the other...
i decided to change the equation to theta/90*g=Ag... My physics teacher told me that it was sheer luck that my data came close to the same. i was using a ball down a ramp and apparently the ball rolling can cause changes in the accelaration. so I'm going to change the ball to a cart and see what...
I'm new to this forum so please don't mind my being a newbie. I found this equation at school, .5((90-theta)/90)*G=Ag where theta is the angle on the base (not the right angle)
|\
| \ <ramp
|_ \<Theta
^
right angle
and G is the acceleration due and Ag is acceleration in the...