Part (a) refers to the figure below. A block of mass m = 0.1 kg is going down and inclined plane with an initial speed v₁. The

Question

Part (a) refers to the figure below. A block of mass m = 0.1 kg is going down and inclined plane with an initial speed v₁. The inclined plane makes an angle θ= 30° with the horizontal and the inclined plane has a kinetic friction coefficient μk = 0.7. After travelling a distance L = 0.8 m, the block encounters. a spring with a spring constant k = 20 N/m. The block comes to rest after compressing the spring an amount = 0.3 m. What is v₁, the initial speed of the block?

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