Charles Link's latest activity
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Charles Link reacted to kuruman's post in the thread Collision of a bullet on a rod-string system: query with
Like.
Yes, I foolishly thought that the CM velocity need not be added. That agreement vis-à-vis what the problem was asking is another point... -
Charles Link replied to the thread Collision of a bullet on a rod-string system: query.@kuruman Somewhat good, but you forgot to include ## v_{cm} ## to the velocity of the left end of the rod for the first part. Once you...
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Charles Link replied to the thread Collision of a bullet on a rod-string system: query.The rotation rate will increase, but in any case, I think you successfully located what was causing the big dilemma, and I found it...
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Charles Link replied to the thread Collision of a bullet on a rod-string system: query.@haruspex Please see my post 51. Together I think we successfully solved it=at least the first part. What it does after the initial...
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Charles Link replied to the thread Collision of a bullet on a rod-string system: query.and a follow-on: I'm taking a very close look at Becker's discussion and derivation of the angular momentum law, and this one is...
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Charles Link replied to the thread Collision of a bullet on a rod-string system: query.This one seems to be open to interpretation if the point on the body that sits there accelerates, and it does in this case. I would...
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Charles Link replied to the thread Collision of a bullet on a rod-string system: query.But the rod moves at the point of attachment. For the case of ## \theta=0 ## degrees, we are also in agreement, because the string...
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Charles Link replied to the thread Collision of a bullet on a rod-string system: query.Looks very good. We now agree at 90 degrees, but in a way, that is expected. We agreed for ## \int T \, dt =0 ## for 90 degrees, and...
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Charles Link reacted to haruspex's post in the thread Collision of a bullet on a rod-string system: query with
Love.
Ha! Found my error. Missed two terms… Let the post-impact angular velocity be ##\omega## anticlockwise and the speed of the left end... -
Charles Link replied to the thread Collision of a bullet on a rod-string system: query.and a follow-on: It just occurred to me with your angular momentum calculation, that when using the reference point the way you did...
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Charles Link replied to the thread Collision of a bullet on a rod-string system: query.and a follow-on: We both agree that ## \int T \, dt =0 ## for ## \theta=90 ## degrees. You have a result (post 31) that ## u=v...
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Charles Link reacted to haruspex's post in the thread Collision of a bullet on a rod-string system: query with Like.
Would you be happy to post your working, in a PM maybe?
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Charles Link replied to the thread Collision of a bullet on a rod-string system: query.@haruspex Your solution in post 31 looks to be a very good one. Thank you. :) I've looked over my solution carefully=I will need to...
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Charles Link reacted to haruspex's post in the thread Collision of a bullet on a rod-string system: query with Like.
No, I don’t fix that point. I wrote: I then expressed the motions of the rod and bullet in terms of these: That is, in the lab frame...
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Charles Link replied to the thread Collision of a bullet on a rod-string system: query.This is super. We now have something to compare to, and I think it shows some very interesting features. I'm not going to try to...