98. On a homogeneous solid cylindrical shaft of radius

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98. On a homogeneous solid cylindrical shaft of radius R = 20 cm, which is the moment of inertia J = 0,15 kg • m2 light wound thread, the end of which is attached a weight of m = 0,5 kg. Prior to the rotation of the drum height h above the floor of the cargo was 2.3 m. To determine: 1) the dependence of s (t), according to which the moving load; 2) the thread tension force; 3) the kinetic energy of the load at the time of impact with the floor.

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


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