The coefficients of friction between the three blocks and the horizontal surfaces are ?s = 0.25 and ?k = 0.20. The weights of the blocks are WA = WC = 20 lb, and WB = 10 lb. The velocities of blocks A and C at time t = 0 are vA = 9 ft/s and vC = 15 ft/s, both to the right. Determine(a) The velocity of each block at t = 0.5 s,(b) The tension in the cable.

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B