Finding the force vector of an object with angular velocity

AI Thread Summary
To determine the force vector when one cube with angular velocity collides with a stationary cube, it is essential to consider both linear and angular momentum conservation rather than just the direction of motion. The force vector is influenced by the angular momentum of the rotating cube, which complicates the calculation. Understanding the torque generated during the collision is also crucial, even if it is not directly known. The available data, such as masses, locations, and speeds, can help in calculating the resulting forces and motions after the impact. This approach is vital for accurately simulating physics in a game engine.
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So let's say i have two cubes. If one of them slams into the other (assuming it isn't moving at all) then the force vector is just going to be the direction the first cube was moving in correct? But say that this first cube also had angular velocity on some arbitrary axis, in other words it's rotating. How exactly would I find the force vector in this case? I don't know the torque of this collision but I do know the displacement vector. I also know the masses, locations, angular/linear speeds, and other general information (i realize this is pretty ambiguous) about the cubes. I'm trying to make a physics engine for a game and I don't have a huge background in physics or anything.
 
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hi 1101! :smile:

i don't know what you mean by the force vector …

force doesn't really come into it …

you need conservation of momentum and also conservation of angular momentum :wink:

1101 said:
So let's say i have two cubes. If one of them slams into the other (assuming it isn't moving at all) then the force vector is just going to be the direction the first cube was moving in correct? But say that this first cube also had angular velocity on some arbitrary axis, in other words it's rotating. How exactly would I find the force vector in this case? I don't know the torque of this collision but I do know the displacement vector. I also know the masses, locations, angular/linear speeds, and other general information (i realize this is pretty ambiguous) about the cubes. I'm trying to make a physics engine for a game and I don't have a huge background in physics or anything.
 

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