Find the reaction force in Problem 3.7, provided that the coefficient of friction between the block and the wedge is equal to u. Neglect the friction of the wedge on the table. 3.7. A block of mass m is placed on a wedge of mass M (Fig. 3.7 a). Find the acceleration of block a and wedge b in the reference frame associated with the table and the reaction force. Ignore friction. Analyze the limiting case when the wedge is stationary.

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