Spricigo

Sometimes during eva construction the kerbal is pushed by the part they are picking but in my experience those are noticeable but gentle push. What you describe seems way more dramatic. In regard to loss of control, if memory serve me well, you need to exit construction mode to move your kerbal.

Are you playing in a console? If so you can find the control schemes for KSP in console Here for xbox and Here fo PS4 If you are playing in a PC go to main menu > Settings > Input to see and adjust your controls Notice you may be unable to throttle because lack of craft control or some technical issue with your controller.

well..it's actually a function of both. Vt=√(2mg/dACd)m n g and d depends on the atmosphere* while m, A and Cd depends on the craft. Which indeed means that such chart wouldn't make sense if only the atmosphere is referenced. There is a table that give the terminal velocity for a imaginary body in diferent elestial bodies there https://wiki.kerbalspaceprogram.com/wiki/Atmosphere Using the formula above, I suppose. I guess an spreadsheet would help. Seems a bit impractical for me. mm,mmno, there is no chart like that. Look for yourself. https://wiki.kerbalspaceprogram.com/wiki/Kerbin The chart there with density and pressure for altitude may be used to construct the chart you talking about but as pointed above you also need the values for the craft. At the time KSP was at beta and had a very different and unrealistic drag model. Anything from that time regarding drag have no use for today KSP. *technically g depends on the celestial body and height. However so is d ...technically

is an old bug, I have experienced it myself several times. Still..just not what is happening in the videos above. I get that you were not in doubt but for future reference the easiest way to confirm that bug is looking at the orbital period when no thrust is applied. However, no idea how to actually reproduce the bug. (maybe it need be two bugs that love each other )