For a thrown ball of constant density, what is the maximum possible rotational/linear velocity ratio?
Probably not. Because when spinning the ball by a single force, you will always have a tangential component of the accelerating force, thus making the ball move.Originally posted by Loren Booda
First, is it possible to spin an otherwise freely "thrown" ball (released at one point on its surface) without causing it to move linearly,
Can you prove the latter assertion?There is a theoretical minimum spin:velocity ratio, but not a theoretical maximum for this case.
Yeah, but frankly it would take me more effort than I feel like right now. If you've already looked at the equations though, you can easily figure it out for yourself. I'll get you started:Originally posted by Loren Booda
russ_watters Can you prove the latter assertion?
Yes sure, but in the initial post, Loren said 'ball of constant density'.Originally posted by russ_watters
How much spin and how much forward motion you get can still vary infinitely
Oops. In that case, there is only ONE ratio I think.Originally posted by arcnets
Yes sure, but in the initial post, Loren said 'ball of constant density'.