Recent content by Starkrod

Man, thank you very much. I asked in other sites and that seems to be a satisfying answer, I was trying to think of it as an statics problem and got really confused. I guess the word collision is key to all the considerations you pointed out. It was a hard question for me too, because yes, it...

Or should I think more about the components of that contact force. I'm kind of lost getting information or "critical" relations that satisfy that condition

I was trying to say rx thinking two dimensional. Otherwise I feel like out of information.

Ok, I think I get your argument. If a choose my origin on the pivot I can omit the set up from before and think in two different moments: before the collision I have the sphere with some velocity v and argular momentum \vec{r} x \vec{p}, after the collision I have other velocity and another r...

You are suggesting a reference frame in which there's no torque involved? I really don't see it

It's [tex]v=\sqrt{\frac{10}{7}gh} [\tex]

Homework Statement A sphere of radius R is rolling without slipping with a velocity v and collides inelastically with a step of height h < R. ¿What is the minimum velocity for which the sphere will be over the step? Homework Equations Total kinetic energy (maybe)...