Where does the ##Y_{C}## measurement go in this I section?

  • Thread starter Thread starter Benjamin_harsh
  • Start date Start date
  • Tags Tags
    Measurement Section
AI Thread Summary
The discussion focuses on calculating the moment of inertia of an I section about its centroidal axis, specifically addressing the placement of the ##Y_{C}## measurement, which is given as 108.4. Participants note that the d values along the X axis are considered to be zero. There is confusion regarding how ##X_{C}## can equal zero based on the provided diagram. It is suggested that the diagram implies all shapes have their centers aligned along the Y axis, despite visual discrepancies. Clarification on these points is essential for accurate calculations.
Benjamin_harsh
Messages
211
Reaction score
5
Homework Statement
calculate the moment of inertia of this I section about centriodal
axis (##Y_{C}## = 108.4)
Relevant Equations
##Y_{C}## = 108.4
calculate the moment of inertia of this I section about centriodal axis (##Y_{c}## = 108.4)

245323


Where does ##Y_{C}## measurement goes in this I section?
 
Physics news on Phys.org
calculate the moment of inertia of this I section about centriodal axis (##Y_{C}##= 108.4)

245324


245325


We can see d values at X axis is taken as 0.

How ##X_{C} = 0## in this diagram?
 
Benjamin_harsh said:
calculate the moment of inertia of this I section about centriodal axis (##Y_{C}##= 108.4)

View attachment 245324

View attachment 245325

We can see d values at X axis is taken as 0.

How ##X_{C} = 0## in this diagram?
The diagram does not supply the relative x displacements of the three shapes. It looks as though you are meant to take them as all having their centres on the Y axis, despite appearances.
 

Thread 'Errors and significant figures'

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...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

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...
View full post »

Similar threads

Is there any shortcut for this lengthy problem?
Replies
19
Views
2K
Modeling a mass falling from one side of the Earth to the other
Replies
1
Views
901
Where Did I Go Wrong? Solving for Angular Momentum in Air Table Puck Collision
Replies
3
Views
1K
Finding the final velocity with quadratic drag
Replies
6
Views
2K
Finding magnetic field using Ampere's Circuital Law
Replies
5
Views
933
How Can I Measure Kinetic Energy in a Non-Inertial Reference Frame?
Replies
4
Views
1K
Punching a hole in a tape moving at relativistic speed
Replies
26
Views
1K
Perturbation Methods: Asymptotic Matching Question
Replies
2
Views
1K
Calculating air resistance for a cart rolling down a ramp
Replies
8
Views
2K
Determing the center of gravity of a shaded section
Replies
14
Views
2K

Hot Threads

Recent Insights

Back
Top