In Fig, A is a 4.4-kg block and B is a 2.6-kg block. The coefficients of static and kinetic friction between A and the table are 0.18 and 0.15. (a) Determine the minimum mass of the block C that must be placed on A to keep it from sliding. (b) Block C is suddenly lifted off A. What is the acceleration of block A ?

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Kevin Nash · Answer

Therefore the mass of block C is 10 kg. Therefore the acceleration of the block A is 2.7 m/s 2 .

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