SciencePhysicsQ&A LibraryIn the figure below a 1.24-kg block is held at rest against a spring with a force constant K 700 N/m. Equibium paition di Rou gh pctch O=A Initially, the spring is compressed a distance d. When the block is released it slides across a surface that is frictionless, except for a rough patch of width = 4.89 cm that has a coefficient of kinetic friction k= 0.554. Calculate a such that the block's speed after crossing the rough patch is 2.44 m/s.

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