The flat circular disk rotates about a vertical axis through O with a slowly inc

Question

The flat circular disk rotates about a vertical axis through O with a slowly increasing angular velocity ?. Prior to rotation, each of the 0.60-kg sliding blocks has the position x = 29 mm with no force in its attached spring. Each spring has a stiffness of 390 N/m. Determine the value of x for each spring for a steady speed of 219 rev/min. Also calculate the normal force N exerted by the side of the slot on the block. The force N is positive if it pushes from the side labeled A. Neglect any friction between the blocks and the slots, and neglect the mass of the springs. (Hint: Sum forces along and normal to the slot.)

Explanation / Answer

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