Recent content by doctorjanitor

Also how would i explain this concex graph? I can pretty much ignore the results that arn't terminal velocity just by saying they arn't terminal velocity thus they don't concern me, and think this is after 34g that they don't reach terminal velocity. But its the lower end of the graph that...

I know I'm not actualy measuring terminal velocity properaly as that is quite difficult, with the lighter weights i know that terminal velocity is reached very early on, and with my heavier weights it doesn't reach it at all. So i worked out the GPE and the KE on impact, and the difference of...

Any clue?? I'm still not too sure!

I can't really follow the template with this question. Im dropping parachutes out of a window with weights attatched. I'm assuming that they travel at terminal velocity from the moment i drop them, and i know this becomes less and less true the heavier weights i use. I plotted the results...

Thanks! Well yeah, your right all i need to know is the terminal velocity (i can't prove that the velocity it his the ground with is the terminal velocity, but i have to assume that). :) I know KE = 1/2Mass x acceleration (so find acceleration might help?).. but i could do it too with...

Further help. Thanks tiny-tim. I don't think i need acceleration, i just kind of threw that in for interest to see if it was possible for further investigation. I can time to two decimal places, e.g to one hundredth of a second, its a stopwatch by eye so the accuracy is questionable, but...

Im doing a little investation.. nothing too detailed. Its into the way parachutes fall ect. Im dropping parachutes out of a window with different weights on, up to a certain weight where the kenetic energy becomes too high. Then I am going to try to design a better shape to reduce the KE of the...