223. The block shown in Fig. P-223 is acted upon by its weight W = 200 lb, a horizontal force Q 600 lb, and the pressure = P exerted by the inclined plane. The result- ant R of these forces is up and parallel to the incline thereby sliding the block up it. De- termine P and R. Hint: Take one axis parallel to the incline. Ans. R = 293 lb Q=600 lb W= 200 lb 30° 15 FIG. P-223. 224. Two horses on opposite banks of a canal pull a barge moving parallel to the banks by means of two horizontal ropes. The tensions in these ropes are 200 lb and 240 lb while the angle between then is 60°. Find the resultant pull on the berge and the angle between each of the ropes and the sides of the canal. Ans. R = 382 lb; 8 = 33°.