Question: The window washers A and B support themselves and the 30-lb uniform plank CD by pulling down on the two ropes. Determine (a) the tension

The window washers A and B support themselves and the 30-lb uniform plank CD by pulling down on the two ropes. Determine (a) the tension in each rope; and (b) the vertical force that each man exerts on the plank.

170 lb 190 lb 30 lb B 10 ft

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