A 5.0 kg block and a 4.0 kg block are connected by a 0.6 kg rod. The links between the blocks and the rod are denoted by A and B. A vertical upward force of magnitude F is applied to the upper block. The blocks and rod assembly are moving downward at a constant velocity of 85 cm/s. a) What is the magnitude of the applied force F? b) What magnitude force does link A exert?

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