A mass of 0.21 kg is initially at rest on a hor- izontal surface. A force, given by F⃗ = Fx ˆı, acts on the mass. The horizontal component Fx is plotted below as a function of position along the x-axes. The coefficient of kinetic friction is 0.044. The acceleration of gravity is 9.8 m/s2 . Calculate the kinetic energy K of the mass as it reaches 5 m. Answer in units of J.

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