Answer to Question #315389 in Mechanics | Relativity for Mosh

Question

We have a horizontal spring with a mass attached oscillating with a maximum displacement of A on either side. At which intermediate displacement(s) the kinetic energy would equal the potential energy

Answer 1

Answer

For given condition

$kx^2=\frac{kA^2}{2}$

After solving

Then

$x=\frac{A}{\sqrt{2}}$

With plus and minus sign.