<p>An object of mass &#39;m&#39; initially at rest on a smooth horizontal plane starts moving under the action of force F = 2N. In the process of its linear motion, the angle&nbsp;<span class="equation">\(\theta\)</span> &nbsp;(as shown in figure) between the direction of force and horizontal varies as&nbsp;<span class="equation">\(\theta\)</span>&nbsp;= kx, where k is a constant and x is the distance covered by the object from its initial position. The expression of kinetic energy of the object will be E =&nbsp;<span class="equation">\(\frac{n}{k}sin\theta\)</span>. The value of&nbsp; n is_______</p>

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