Given:
Initial velocity up the incline, $v_1 = 6 \text{ m/s}$
Angle of incline, $\theta = 20^\circ$
Kinetic coefficient of friction, $\mu_k = 0.20$
Static coefficient of friction, $\mu_s = \mu_k = 0.20$ (as stated in the problem)
We need to find the velocity $v_2$
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