- #1
AI Thread Summary
The discussion centers on solving vector problems, specifically focusing on the calculations for vectors B, C, and D. The correct answer for vector C is confirmed to be 10, but there is confusion regarding the method used to arrive at this result. Participants emphasize the importance of understanding the calculations for B to effectively solve for D. There is also a mention of the concept that the resultant should be consistent across all points due to their relative nature. Clarification on the methods used for these calculations is sought to ensure accurate understanding.
- #2
tiny-tim
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Hi 02drai 
Before we deal with D, I'm worried about your answers for C and B …
C = √(7.072 + 7.072) = √(50 + 50) = 10 …
yes 10 is correct, but how did you get it?
And can you please also say how you got B (yes, it's right too), since if you got it the right way, you should know how to get D.
Before we deal with D, I'm worried about your answers for C and B …
C = √(7.072 + 7.072) = √(50 + 50) = 10 …
yes 10 is correct, but how did you get it?
And can you please also say how you got B (yes, it's right too), since if you got it the right way, you should know how to get D.
- #3
02drai
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tiny-tim said:Hi 02drai
Before we deal with D, I'm worried about your answers for C and B …
C = √(7.072 + 7.072) = √(50 + 50) = 10 …
yes 10 is correct, but how did you get it?
And can you please also say how you got B (yes, it's right too), since if you got it the right way, you should know how to get D.
What i did was to find resultant from AB was just pythagoras. I have got answer and i tried to put logical equation. However, why i get idea that the resultant should be same for all point since they are all relative to eaxh other.
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19.
For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Let's declare that for the cylinder,
mass = M = 10 kg
Radius = R = 4 m
For the wall and the floor,
Friction coeff = ##\mu## = 0.5
For the hanging mass,
mass = m = 11 kg
First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on.
Force on the hanging mass
$$mg - T = ma$$
Force(Cylinder) on y
$$N_f + f_w - Mg = 0$$
Force(Cylinder) on x
$$T + f_f - N_w = Ma$$
There's also...
This problem is two parts. The first is to determine what effects are being provided by each of the elements - 1) the window panes; 2) the asphalt surface. My answer to that is
The second part of the problem is exactly why you get this affect.
And one more spoiler:
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