Recent content by TA1068

Now if it was something like this: http://img194.imageshack.us/img194/8167/fixedpoint.jpg I would say sigma_CD = 10(theta) and sigma_FH = 30(theta) and all would be good. But since it's like this: http://img199.imageshack.us/img199/9023/nonfixedpoint.jpg I have another variable in...

Yikes, I think my TEX tags are all messed up. Not sure how to fix it, let me know if you have any questions!

Homework Statement Three steel bars are pin-connected to a rigid member K. Determine the force developed in each bar. Determine the load carried be each of the tension members and the elongation of each member http://img3.imageshack.us/img3/6850/problemdiagram.jpg Known: A_A_B = 0.10...

Oops! I forgot to attach my image. Here it is attached, and if that doesn't work I uploaded it as well. img229.imageshack.us/img229/1795/tensionwm2.jpg

Homework Statement A horizontal uniform bar of mass m and length L is hung horizontally on two vertical strings. String 1 is attached to the end of the bar and string 2 is attached a distance L/4 from the other end. A monkey of mass m/2 walks from one end of the bar to the other. Find the...

Got it. Thanks.

Also, for the problem you posted, you forgot to multiply by 1/2 That I did. So I have the correct answer now, and I'm pretty sold on the concept of Moment of Inertia. I had already read up a bit on it, but it was a simple calculation error that had me thrown off the whole time. What if the...

Homework Statement A 13cm diameter CD has a mass of 25 g. What is the CD's moment of inertia for rotation about a perpendicular axis through its center? Homework Equations I = \int r^2 dm and possibly... Moment of inertia of cylinder or disk, about center = \frac{1}{2}MR^2 The...

So for my work... B = (-3, 0, 1) and C = (-3, -3, 6) So... 9 + 0 + 6 = 15 15 * 2 = 30 ...I could have sworn that's what I was doing all along, but for some reason I kept getting 60 for my answer. Hmm. Anyways, thanks greatly for any and all help!

Oops! Here it is: img87.imageshack.us/img87/2452/vectorqqp8.jpg

Attached is a .jpg of my problem. I know how to find the scalar product of B*C (I think... 5, right?), but I don't really know where the 2 and 3 come into play. I've tried multiplying the values of C by 3 and then finding the scalar product, then multiplying the quantity by two, but that was...

Awesome... Thank you very much! It all makes sense now. I kept treating centripetal force as a force in itself instead of a net force. Thanks again!

Homework Statement A concrete highway curve of radius 80.0 m is banked at a 13.0 degree angle. What is the maximum speed with which a 1400 kg rubber-tired car can take this curve without sliding? (Take the static coefficient of friction of rubber on concrete to be 1.0.) Homework...