Elastic force is basically a force being exerted on a body that has elasticity.
Elastic strength can be clearly seen in rubber, rubber bands or springs. It is this force that determines the deformation of this body when it is stretched or compressed, depending on the force exerted.
When a spring has one of its ends attached to a support, it is at rest, without any force. When force (F) is applied, the spring will deform, stretch or compress.
Physicist Robert Hooke found that spring deformation increases proportionally when force is applied:
The constancy of the spring will depend on its dimensions and materials that make up its body. Its unit is N/m (newton per meter) and it also has N/cm, kgf/m, and so on.
A body in balance with a weight of 10 kg, is attached to the end of a spring that has an elastic constant of 150 N/m. If we consider g = 10m/s (2), what will be the deformation of the spring?
Because it is in balance, the sum of forces applied to it will be null:
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THE Hooke's law it is based on a specific movement created by the spring. Through this study it was put on paper how this system is developed.
The spring is the object that can be deformed by a force and after that it returns to its original shape when this force is withdrawn.
There are several forms of molam, but the best known would be the helical metal. Springs are indispensable and important in almost all mechanical devices, both simple and complex.
THE Hooke's law demonstrates that a spring has an elastic constant called k. This constant is obeyed up to the limit where the deformation of the spring becomes permanent.
How far the Hooke's law it is valid, if the spring is stretched or compressed and returning to the initial position, of equilibrium.
F = -k.x
k = proportionality constant
x = independent variable.
With this equation it can be concluded that the force is negative, as opposed to the force that is applied. And the greater the elongation of the spring, the greater the intensity of the force opposite to that already applied.
There is no magic in the shape of the coil spring in moving like a spring. The elasticity or softness of the object is the fundamental property of the thread with which the spring is made.
A straight wire that is metal will also return to its original shape after being stretched and twisted. But spiral wire uses much less space, making it more convenient to use on machines.
Check out the full post at: Read from Hooke
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