V. In the figure below, the pulleys are light and frictionless, and the coefficients of friction between the blocks and the surfaces are μk = 0.10 and μs = 0.30. If the hanging block X moves down a distance of 0.5m in 0.5s starting from rest:
18. What is the tension in the cord connecting the 40-kg block and the 10-kg block?
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