How to get the elongation with modulus of elasticity as the given?

AI Thread Summary
To calculate elongation when given the modulus of elasticity, Hooke's Law can be applied, which states that the force (F) equals the spring constant (k) multiplied by the extension (x). The formula can be rearranged to find elongation as x = F/k. It is important to clarify whether the discussion pertains specifically to springs or other materials, as the context may affect the application of the modulus of elasticity. Understanding the relationship between force and extension is crucial for accurate calculations. This approach provides a foundational method for determining elongation based on the modulus of elasticity.
makubexiii
Messages
1
Reaction score
0
How can I get the elongation if I'm given with only the modulus of elasticity?
what will be the formula?

THnx..
 
Physics news on Phys.org
Are you talking about the extension of a spring? (Hooke's law?)

Hooke's law is F = kx

where F is the force applied to the spring, k is the modulus (spring constant), and x is the extension of the spring from its natural length.
 
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...
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...
Back
Top