Bodies A and B are connected by a flexible cable as shown in the picture below. The weights of bodies A and B are 30 lb and 20 lb, respectively. The kinetic coefficient of friction between body A and the inclined surface is 0.30 while the horizontal surface supporting the body B is considered to be smooth. When the bodies are in the position shown, body B is moving to the right with a speed of 5 ft/s. Determi

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