<p>An object of mass 0.2 kg&nbsp; executes simple harmonic motion along&nbsp;&nbsp;axis with frequency of&nbsp;<span class="equation">\((\frac{25}{\pi})\)</span>Hz . At the position x = 0.04m&nbsp; &nbsp;the object has kinetic energy 0.5 J&nbsp; &nbsp;and potential energy 0.4J . The amplitude of oscillation is ________ cm.</p>