75. On the drum of radius R = 20 cm, which is the momen

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Uploaded: 23.03.2014
Content: fiz005_75.doc (80 kB)

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75. On the drum of radius R = 20 cm, which is the moment of inertia J = 0,1 kg ∙ m2 wound cord that is bound to a weight of m = 0,5 kg. Prior to the rotation of the drum load height above the floor h = 1 m. Find: 1) after a time t1, the load will fall to the floor; 2) the kinetic energy of the load Wc at the moment of impact on the floor; 3) The tension of the string T. friction and tension cord neglected.

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)

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