Comments
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hey, I am trying to figure out the moment of inertia with respect to various axis. I am, having trouble figuring out how to find out dm.
I know that dm = (rho)*t*dA, but i am having trouble figuring out the t*dA part. i tried using
t*dA = (pi)(r^2)/2
That didn't...
actually...now that I'm trying to figure out the 2nd part...i can't get it...do i have to use a couple system at D or something of that sort? use moments? or am i over thinking it? thanks once again for any help :D
sorry the image didn't show up ... let me try this
http://img98.imageshack.us/img98/2858/circleproblemit0.jpg
http://g.imageshack.us/img98/circleproblemit0.jpg/1/
Homework Statement
A cable passes around three 2-in-radius pulleys and supports 2 blocks as shown. Pulleys C and E are locked to prevent rotatoin, and the coefficient of friction between the cable adn the pulleys are static = .20 and kinetic = .15. Determine the range of value of the weight of...
hmm...my image didn't show last post.
hmm...thinking about it, would the z coordinate just be 105mm?
http://img513.imageshack.us/my.php?image=cylindervk2.png
yeah i get that much, but for this problem it wants me to find the z coordinate for the center of gravity. and the cylinder is oriented 105 mm in the z direction, with a height of 10 mm going in the y direction.
Here is a pic that hopefully gives some clarification. I apologize for the...
Hey,
for this problem i need to find the z coordinate of the center of gravity. I have a cylinder/disk whose height is along the y-axis and radiates about the x and z axis. what is the equation to find z bar. this is just one part of the problem.
hey,
thanks for the welcome. I figured it out. It was just a bunch of math that I haven't done in the longest time. i had to figure out what k was which is where i messed up at the beginning. I used:
x = ky^2 and i just put b and a so...
a = kb^2 and found k to be b...which was wrong.
it...
Homework Statement
hey, I'm having issues with a problem, and my book doesn't seem to show me how to do it.
so,
i have a curve x = ky^2 and I'm to rotate it about the x-axis. I need to find the surface area generated.
How do i use the first theorem to do this? Thanks for the help
sorry...