The potential energy function (in \( \text{J} \)) of a particle in a region of space is given as \( U = (2x^{2} + 3y^{3} + 2z) \). Here \( x \), \( y \) and \( z \) are in meter. The magnitude of x-component of force (in \( \text{N} \)) acting on the particle at point \( P(1,2,3) \, \text{m} \) is: