A cord is wrapped around a pulley of mass m and radius r. The free end of the cord is connected to a block of mass M. The block starts from rest and then slides down an incline that makes an angle ? with the horizontal. The coefficient of kinetic friction between block and incline is 7. (a) Use energy methods to show that the blocks speed as a function of position d down the incline is(b) Find the magnitude of the acceleration of the block in terms of 7, m, M, g, and ?.
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