Homework Statement
[/B]
Homework Equations
a⋅(b x a) = 0
The Attempt at a Solution
Is my working below correct? In particular, can you apply the rCB to both the first part of the bracket (0.2j) and the second part (w x rCB) individually like that?
My second question relates to:
Is...
Ah that makes sense! This question is from an exam paper set by my university's engineering department a few years ago, is there any way to determine that this rod is infinitely thin from the wording of the question? Does the ''uniform slender'' part suggest this?
Also, I was wondering why...
If the moment of inertia relative to the parallel axis is zero, then why is the moment of inertia about axis ZZ (in my data book) not 0? This axis is parallel to the cylinder?
Homework Statement
Homework Equations
ml2/12
The Attempt at a Solution
So according to my databook:
The axis x'-x' in the question corresponds to axis ZZ in the databook image above. That means in terms of radius, the moment of inertia about axis x'-x' is mr2/2. So in light of this...
Homework Statement
Homework Equations
RAO = b(Sinβj+Cosβk)
The Attempt at a Solution
[/B]
The box in red is ω. However I am unsure of where they got the box in blue from? As mentioned above, RAO = b(Sinβj+Cosβk) so not sure where they got the box in blue from? I know of the vector triple...
Homework Statement
Homework Equations
N/A
The Attempt at a Solution
I know that they got a rank of 2 since there are 2 linearly independent columns but what if we decided to count rows? In that case we would have 4 linearly independent rows which would suggest the rank is 4? How do we...
Homework Statement
Homework Equations
N/A
The Attempt at a Solution
The left hand side (red box) is the data sheet provided to us in the exam. The right hand side (blue box) is Wolfram Alpha. The data sheet says that the inverse Laplace transform of 1/s is equal to u(t) (i.e. the unit step)...
Homework Statement
Homework Equations
The Attempt at a Solution
I have done question 1.18 and I understand it completely. However, for question 2.5, I do not understand how they got G(s)? Why isn't the G(s) in question 2.5 the same as G(s) at the bottom of question 1.18? I asked my lecturer...
Homework Statement
Homework Equations
N/A
The Attempt at a Solution
I understand how they got the answer and the calculations they did but I have 3 questions about this screenshot.
1) Why the box in red is the transfer function? Is there a way to tell this from the Y(s) = ... expression?
2)...
Sorry for the late reply. I am still confused. I just want to know how they (mathematically) got from the left hand side to the right. I don't understand how integrating the left hand side yields the right hand side.