Recent content by dvyu

Homework Statement I have had to do 6 labs for physics class, and i am now trying to write them up, but am a little confused. The first lab i did was to verify the equation v=f?. I yoused a generator to make a straight wave, and then put in a barrier to make a standing wave. I have to...

oh, sorry i hadnt realized

breaking strength is done in Newtons?? - Thank you so much fo all your help, I don't know what I would have done

Yes, I made the Fnet 0, just forgot to type that in. So to answer the question, what minimum breaking strength must the line have to ensure the continuing support of the bird? - do I need to do anything else??

I see - so I don't have a Fn in this diagram. so Fnet = Fg [D] + Tsin30 [U] + Tsin45 [U] 1.21T [U] = 19.6 [U] T = 16.34 N

To be honest, I am not sure. My teacher has not gone into things like this, he just tells us. This is why I am struggling a little now I think. How should I go about thinking about this, because I don't really want you to just tell me the answer.

I think I have double counted. I put the component of tension (vertical) for both triangles - the 30 degree and 45 degree So I only need one, right?

The force of gravity on the bird.

Okay, I shall make sure I do that - I was doing it for the bird. The rope clothesline is providing the Fn I suppose, is that right?

I'm having some trouble, this is what I have done so far. Vertical Direction Fnet = Fg + Fn + T1v + T2v 0 = 19.6 [D] + Fn [U] + Tsin30 [U] + Tsin45 [U] Fn = 19.6 - 1.21T Where do I go from here??

I am working on Sir Isaac Newto Contest Questions, which are a little tougher. Would you point me in the right direction with this next one too? A 2kg chicken rests at point C on a slack clothes line ACB. CA and CB slope up from the horizontal at 30degrees and 45degrees. What minimum breaking...

Oh that's more typing - I have Fcontact written down, I just can't copy! I also have the calculations in columns headed with horizontal - but the math is correct though?

They are stationary or moving at the same speed/acceleration. So, is this right? - Fnet = Fapp 2a = 3 a = 1.5m/s^2 block 2 Fnet = Fapp 1a = Fapp Fapp = 1.5N The force of contact is 1.5N??

That's what I thought, but how do I go about finding this force, don't tell me exactly, but if you could point me on the right path.

The question reads: Two blocks are in contact on a frictionless table. A horizontal force is applied to the first block. If the m1 = 2.0kg, m2= 1.0kg and Fapp = 3.0N, find the force of contact between the two blocks. What does the question mean by the force of contact?