How to calculate the acceleration of the system

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Q. A person stands on a scale in an elevator. As the elevator starts, the scale has a constant reading of 592 N. As the elevator later stops, the scale reading is 386 N. Assume the magnitude of the acceleration is the same during starting and stopping.

Q. A 28 kg block is connected to an empty 1 kg bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and te block is .465 and the coefficient of kinetic friction between the tabel and the block is .320. Sand is gradually added to the bucket until the system just begins to move. Calculate the meass of sand added to the bucket. Calculate the acceleration of the system.

Reference no: EM1364863

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