And what would the webpage title be?Pressure on a Button on a Table

  • Thread starter Thread starter alsemmelink
  • Start date Start date
  • Tags Tags
    Pressure Table
AI Thread Summary
A vertical force of 30N is applied to a flat button with a radius of 1cm, prompting a calculation of the pressure exerted on it. The formula for pressure, P=F/A, is used, where A is the area of the button calculated as πr². Participants are encouraged to ensure unit consistency while performing the calculation. The discussion emphasizes the importance of correctly applying the formula to derive the pressure value. Accurate calculations are essential for understanding the pressure applied to the button.
alsemmelink
Messages
1
Reaction score
0
1. A vertical force of 30N is applied uniformly to a flat button with a radius of 1cm that is lying on a table. Estimate the pressure applied to the button



2. P=F/A



3. P=F/A= 30/(3.14)(r)^2
 
Physics news on Phys.org
Welcome to PF!

Hi alsemmelink! Welcome to PF! :smile:

(try using the X2 tag just above the Reply box :wink:)
alsemmelink said:
P=F/A= 30/(3.14)(r)^2

That's the correct formula …

so what answer do you get (and remember to be careful about the units)? :smile:
 

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

How to calculate pressure when two forces are exerted
Replies
23
Views
1K
Contact Mechanics: Deformation of a ball on a surface
Replies
3
Views
1K
Pressure versus stress in uniformly charged sphere
Replies
11
Views
1K
Newton's law problem: Pushing 2 stacked blocks on a horizontal table
Replies
13
Views
3K
Fluids: Concept about Fluid Pressure in a relation with Force and Area
Replies
6
Views
3K
Pressure question: Weight of a car calculated from tyre contact patch area
Replies
3
Views
853
Change of of the pressure of water inside a container
Replies
7
Views
2K
Calculate magnetic dipole of other planets relative to the Earth
Replies
4
Views
1K
Magnetic energy density, and pressure due to magnetic force
Replies
23
Views
4K
What does it mean for there to be uniform pressure?
Replies
5
Views
4K

Hot Threads

Recent Insights

Back
Top