13. Blocks A and B are connected by a cable that passes through two pulleys of negligible mass, as shown in the figure. The kinetic coefficient of friction between the inclined plane and block A is 0.4. If the initial velocity of A is 8 ft/s down the plane, determine how far A travels and how much time it takes to stop. P=0.4 20° 8 pies/s A 10 lb B 6lb

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