PDA

View Full Version : Re Lift / Elevator problem



d3uk61
12-10-2009, 07:18 PM
Thanks to everyone who replied there were some great anwers that broke the spell of confusion. Particularly liked the idea of imagining the whole earth accelerating a 9.81m/s. Strange thing is not the spell is broken it's so obvious I can't see why I was confused in the first place. Ah well embarassment for a moment saves stupidity for life eh?
Now I just have to think what scenario resulting in CoM at vertical constant velocity, I.E. constant vertically applied force on the force plate over a period of time, would happen during the stance phase of gait. We were thinking about the actions of perturbations in the saggital plane progression.

I tried to reply to all but each time I try and post the summary of all replies the mail is returned with the reason being explained as due to "5.1.0 - Unknown address error 554-'5.7.1 Message scored extremely high on spam scale. No incident created"

Thanks again Dave