Hooke’s Law (AQA A-Level Further Maths): Flashcards

$l$, length when no forces acting on string

$x = l' - l$ ($l'$ = stretched length, $l$ = natural length)

Tension $T$ is proportional to extension $x$: $T \propto x$

$T = kx$

$\lambda$ (lambda), measured in newtons (N)

$T = \frac{\lambda}{l}x$

$\text{EPE} = \frac{\lambda}{2l}x^2$

$W = \frac{\lambda}{2l}X^2$

Has negligible mass

Point beyond which string becomes permanently deformed