Question

Alguem me ajuda a responder essa??


Uma mola de constante elástica igual a 40 N/m, sofre uma deformação de 0,2m. calcule a energia potencial acumulada pela mola

Answer 1

$\Large{\begin{array}{l}\tt E_p=\dfrac{k\cdot x^2}{2}\\\\\tt E_p=\dfrac{40\cdot(0,2)^2}{2}\\\\\tt E_p=\dfrac{40\cdot0,04}{2}\\\\\tt E_p=\dfrac{1,6}{2}\\\\\boxed{\boxed{\tt E_p=0,8\,J}}\end{array}}$