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Una mesa horizontal sin friccin tiene un pequeo agujero en el centro. El bloque A, de masa m A de la figura es conectado mediante

Una mesa horizontal sin friccin tiene un pequeo agujero en el centro. El bloque A, de masa mAde la figura es conectado mediante una cuerda ideal que pasa a travs del agujero a otro bloque B, de masa mBque cuelga por debajo de la mesa. Inicialmente, el bloque B es sostenido mientras que el bloque A est rotando con velocidad angularw0 en un radio R. Si en el instante t= 0 el bloque B es soltado, encuentra:

  1. Las ecuaciones de movimiento para ambos bloques.
  2. La aceleracin del bloque B inmediatamente despus de ser soltado.
  3. El valor para la velocidad angular que debe tener el cuerpo A inicialmente para que el bloque B baje con velocidad constante al ser soltado.

A horizontal, frictionless table has a small hole in the center. Block A of mass mA in the figure is connected by an ideal string passing through the hole to another block B of mass mB hanging below the table.

Initially, block B is held while block A is rotating with angular velocityw0 at radius R. If at time t = 0 block B is released, find:

The equations of motion for both blocks. The acceleration of block B immediately after it is released. The value for the angular velocity that body A must have initially for block B to descend with constant velocity when released.

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