Block one of mass 10kg is on a horizontal table there is, Ask an Expert

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Block one of mass 10kg is on a horizontal table. There is friction between the block and the table, the coefficient of kinetic friction is 0.25. A horizontal string is connected to the block and passes over a pulley to a second mass of 20 kg that is hanging from the string. This mass is accelerating downward. Find the tension in the string and the acceleration.

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