A 30.5 kg block is connected to anempty 1.00 kg bucket by a cord running over a frictionless pulley(Fig. 4-57). The coefficient of static friction between the tableand the block is 0.425 and thecoefficient of kinetic friction between the table and the block is0.320. Sand is gradually added to the bucket until the system justbegins to move.

Figure 4-57.

(a) Calculate the mass of sand added to the bucket.

(b) Calculate the acceleration of the system.


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