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A block of mass m1- 8.2 kg is at rest on a plane that makes an angle of 9 30° above the horizontal. The coefficient of kinetic friction between the block and the plane is k-0.100. The block is attached to a second block of mass m2- 17.8 kg that hangs freely by a string that passes over a frictionless, massless pulley (see the Figure). Calculate the speed when the second block has fallen 9.7 m. (Your result must contain 1 digit after the decimal and must be in units of m/s. Take g-9.81 m/s2 2% of error will be tolerated in your answers.) 30

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