Question

A spiral spring is co.pressed by o.o3 calculate the energy stored in the spring .if its force constant is 300Nm-1

Answer 1

$\bold{U=\dfrac{1}{2}kx²}$

$\bold{U=\dfrac{1}{2}×300×(0.03)²}$

$\bold{U=\dfrac{1}{2}×300×9×10^{-4}}$

$\bold{U=\dfrac{27}{2}×10^{-2}}$

$\bold{\red{U=13.5×10^{-2}J}}$

$\bold{\red{U=0.135J}}$