Find the kinetic energy of a phonograph

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Question: Find the kinetic energy of the rotating body. Use the fact that the kinetic energy of a particle of mass m moving at a speed v is ½ mv2. Slice the object into pieces in such a way that the velocity is approximately constant on each piece.

- Find the kinetic energy of a phonograph record of uniform density, mass 50 gm and radius 10 cm rotating at 331/3 revolutions per minute.

Reference no: EM131607190

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