- #1
Thana
- 3
- 0
- Homework Statement
- If you apply a greater force, will the spring constant remain the same, increase, or decrease?
- Relevant Equations
- PEe=1/2kx^2
I'm leaning towards the same, or maybe increase. I actually have no clue.
What is your reasoning for that? Say it in your own words.Thana said:Homework Statement: If you apply a greater force, will the spring constant remain the same, increase, or decrease?
Relevant Equations: PEe=1/2kx^2
I'm leaning towards the same, or maybe increase. I actually have no clue.
Resistance to what? What equation comes to mind that involves the spring constant? What is the definition of each term in this equation?Thana said:When you increase the force the spring compresses more, so the spring Constant increases? Spring Constant is the resistance.
No, F=-kxThana said:F=-k/x is hooke's law.
How can the same extension applied to the same spring result in two different forces?Thana said:so if we set x=2 and solve for k if force is 2 and 4, the k would be 1 and 2, so it increases?
Actually F=-kx. The negative sign is important because it says that the force F is always opposite to the displacement x, i.e. the force is restoring.deajohn said:If spring is linear, then F = kx and k is the same, a constant. Greater force gives greater deflection but k is constant and the same, as long as it is a linear spring.
The value of the spring constant is found experimentally.Thana said:F=-k/x is hooke's law.
force, spring Constant, and displacement.
How can the force change from 2 to 4 if the value of x stays constant? Are you picturing in your mind the spring?Thana said:so if we set x=2 and solve for k if force is 2 and 4, the k would be 1 and 2, so it increases?
Not if by F you mean the magnitude of ##\vec{F}##. The correct expression is ##F_x=-kx##.kuruman said:Actually F=-kx
"F" in F = - kx is the symbol standing for a one-dimensional vector and can be positive when x < 0 or negative when x > 0. This convention is also the case in other 1-D equations such asMister T said:Not if by F you mean the magnitude of ##\vec{F}##. The correct expression is ##F_x=-kx##.