In FIGURE 8-46 a 1.2-kg block is held at rest against a spring with a force constant
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In FIGURE 8-46 a 1.2-kg block is held at rest against a spring with a force constant k = 730 N/m. 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 5.0 cm that has a coefficient of kinetic friction μk = 0.44. Find d such that the block's speed after crossing the rough patch is 2.3 m/s.
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Use Equation 89 to relate the nonconservative work of friction on the entire system eq...View the full answer
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