Recent content by Moara

Indeed, maybe we can try to find the general formula for the displacement of the beam and then impose that ##v(4) = -0.5 mm##. With that, I think we may find ##V_A, V_B, M_A## and find the diagram of moments, to find its maximum value

First, I am trying to find the external reactions in A and B, but I have only one equation relating ##V_A## and ##V_B##, what other relation could I use ? Once I find the reactions, I can find the external moment as well. Then, I may draw the diagram of moments in each cross section and then...

but I think that horizontal and vertical equilibrium plus rotation equilibrium of AC and BC around C is correct

I probably did a mistake in my calculations

It appears that I have to look AC and BC separately right

It appears that I have to look AC and BC separately right

with that in mind, I did the equilibrium of rotation looking to C, from bar AC, getting another equation and finding ##H_A = \frac{90}{7}##, is it correct doing that ?

I don't think I understand how am I supposed to remove one support, could you clarify, please? Meanwhile, I tried to split the structure looking only at the branch AC, can I say that in C there will be only horizontal forces, hence finding that ##V_A = 10 \ kN## ?

First, since A and B are articulated, the moments due to A and B are zero. Now, we may call reaction forces in A, ##V_A## and ##H_A## and in the same way, call the reactions in B as ##V_B## and ##H_B##. With that and Newton's third law, I managed to find three equations (equilibrium of...

We know that ##P(A-) = (95\% \cdot 0.5\% + 5\% \cdot 98.5\% )## and ##P(guilty \ and \ A-) = (95\% \cdot 0.5\%)##, so letter a) is just ##P(guilty \ and \ A-)/P(A-)##. What I tried to do in letter b) was again using the conditional probability theorem. First calculating the probability that...

So you agree with my part c) calculation ? What about letter b), as told before, I don't think I truly understand what that relative frequency question mean.

so you agree with my calculations in c), but don't agree with the scientist's assumption that the events are independent? And letter b) could you clarify what that relative frequency interpretation mean ?

you mean my calculations in letter c) ?

For letter a), i think that he is assuming that each hypothesis is independent, and that they are mutually exclusive.For letter b), I understand that it indeed admits the relative frequency interpretation, since the the experiment is being produced several times. For letter c) we do the...

If anyone can recommend platforms or programs for doing these type of figures and diagrams, even if it doesn't have anything related to latex, I would be gratefull to