Recent content by savva

Homework Statement How massive an object can be supported by a 5.6 -diameter suction cup mounted on a vertical wall, if the coefficient of friction between cup and wall is 0.65? Assume normal atmospheric pressure. Homework Equations - The Attempt at a Solution I calculated the maximum...

Yes, the distance is from one vertice to the midpoint of the length, which is 27.5cm, that ends up giving me the correct answer. Thanks for clearing that up for me!

Homework Statement Three 2.30kg masses are located at the vertices of an equilateral triangle 55.0cm on a side, connected by rods of negligible mass. Find the rotational inertia, I_2, of this object about an axis that passes through one vertex and the midpoint of the opposite side Homework...

I don't know, I'm confused, I know the only possible forces that can act is tension and weight components but I don't know how to set it out. Here is an attempt anyway F1=F2 F1: x: mgcosθ y: T-mgsinθ F2: x: T-mgcosθ y: T-mgsinθ

Hey Guys, I'm stuck with two particular problems that relates to two masses attached by a rope on a slope with unequal angles and I'm unsure how to go about the problem, I have never accounted a problem such as these before and I'm stuck with how to go about it. I have taken two photos of the...

Thanks - that makes sense now ΔV=(Vf-V0). I thought too deeply into this question and didn't see the simplicity of it.

Could anyone please verify with me that I have the right idea in answering the question below. Homework Statement If you know the initial velocity v0 and the initial and final heights y0 and y, you can use x=x0+v0t+(1/2)at^2 to solve for the time t when the object will be at height y. But...

Homework Statement Starting from rest, a subway train first accelerates to 25m/s and then begins to brake. Forty-eight seconds after starting, it is moving at 17 m/s. What is its average acceleration in this 48-s interval? Homework Equations 1. v=v0+at 2. x=x0+(1/2)(v0+v)t 3...

Homework Statement Given in uploaded file Homework Equations σallow=\frac{P}{A} τallow=\frac{V}{A} The Attempt at a Solution Given in uploaded file Answers are d=16mm, h=10mm I tried using methods used in previous questions but it didn't work out for me here, if anyone could...

This is what I have come up with, the drawing on the bottom right is the RHS drawing, does it look right?

I do not understand by what you mean by "As you say, these sets of vectors are independent (I would not say "independence exists")" From my calculations I found the first question to be independent and the second dependent. What do you mean you would not say independence exists? I don't...

Homework Statement Use the power method to calculate the dominant eigenvalue and its corresponding eigenvectors for the matrices. The questions are attached with this thread. I have attempted both and seem to have done the first question correctly. I am attempting the second question and am...

Homework Statement I have attempted the questions below but am not sure if I am applying the method correctly to show linear dependence/independence. a)Show that the vectors e1=[1 1 0]T, e2=[1 0 1]T, e3=[0 1 1]T are linearly independent b) Show that the vectors e1=[1 1 0]T, e2=[1 0 -1]T...

Homework Statement I need to draw an orthogonal RHS of an object I have attached as a pdf file with the message for an assignment. My problem is I do not know what the RHS of the drawing would look like. I know how to use autocad to do drawings but I'm stuck when I need to envisage the...

Homework Statement question is attached with threadHomework Equations The Attempt at a Solution Is attached with thread. I tried solving by creating a moment at a point, which I did at 2 separate points points to give me the same answer, which I would expect, however it is not the answer I am...