A spool of thin wire (with inner radius r= 0.40m, outer R= 0.55m, and moment of inertia Icm=0.79 Kg*m^2 pivots on a shaft. The wire is pulled down by a mass M = 1.35 kg. After falling a distance D=0.53 m, starting from rest, the mass has a speed of v=70.900 cm/s. Calculate the energy lost to friction during that time?

A spool of thin wire (with inner radius r= 0.40m, outer R= 0.55m, and moment of inertia Icm=0.79 Kg*m^2 pivots on a shaft. The wire is pulled down by a mass M = 1.35 kg. After falling a distance D=0.53 m, starting from rest, the mass has a speed of v=70.900 cm/s. Calculate the energy lost to friction during that time?

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