Question

uma mola de constante elástica 500 N/m sofre uma deformação de 0,5m. Calcule a energia potencial acumulada pela mola.

Answer 1

Ep=k.x^2/2

Ep=500.0,5^2/2

500.0,25/2

500.0,25=125

125/2=62,5

Ep=62,5

Answer 2

$\Large{\begin{array}{l}\tt E_p=\dfrac{k\cdot x^2}{2}\\\\\tt E_p=\dfrac{500\cdot(0{,}5)^2}{2}\\\\\tt E_p=\dfrac{500\cdot0{,}25}{2}\\\\\tt E_p=\dfrac{125}{2}\\\\\boxed{\boxed{\tt E_p=62{,}5\,J}}\end{array}}$