Friction between plane and object

In the above diagram, a box with mass m1(=8 kg m_{1} (= 8 \text{ kg} ) is on a slope with 60 60^{\circ} inclination. This box is connected with another box with mass m2(=13 kg m_{2} (= 13 \text{ kg} ) by a wire on a frictionless pulley. What is the magnitude of the acceleration of the two boxes when the coefficient of kinetic friction between the first box (8 kg)( 8 \text{ kg} ) and the slope is 0.2? 0.2?

Gravitational acceleration is g=10 m/s2. g=10\text{ m/s}^{2}.

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