Answer: Block A in Fig. P5.89 has mass 4.00 kg, and block
Chapter 5, Problem 5.89(choose chapter or problem)
Block A in Fig. P5.89 has mass 4.00 kg, and block B has mass 12.0 kg. The coefficient of kinetic friction between block B and the horizontal surface is 0.25. (a) What is the mass of block C if block B is moving to the right and speeding up with an acceleration of 2.00 m>s2? (b) What is the tension in each cord when block B has this acceleration?
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