The block of mass M is subjected to a force having a constant direction and a magnitude F = k/(a+bx). When x = x₁, the block is moving to the left with a speed v₁. Determine its speed when x = x₂. The coefficient of kinetic friction between the block and the ground is μ_k.

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Given: M = 2 kg k = 300 N a = 1 b = 1 m - 1 = 4 m V1 = 8 m S x2 = 12 m Ө = 30 deg Mk = 0.25 = 9.81 m 2 1