2-25. The chisel exerts a force of 20 lb on the wood dowel rod which is turning in a lathe. Resolve this force into components acting (a) along the n and taxes and (b) along the x and y axes. be used to designate she etio of the 2-29. If F= 3 kN and = 45°, determine the magni- dignolavinom i obavioral tude of the resultant force of the two tugboats and its mob gonballo world www.commodis press Pass Carte vecnouston 1035oy naies direction measured clockwise from the positive x axis. 2-30. If the resultant force of the two tugboats is required to be directed towards the positive x axis, and F, is to be a minimum, determine the magnitude of F, and FB and the noits angle 0. V 20 lb 45° 60° 30° FB Prob. 2-25 2-26. The beam is to be hoisted using two chains. Determine the magnitudes of forces FA and FB acting on each chain in order to develop a resultant force of 600 N directed along the positive y axis. Set 0 = 45°. 2-27. The beam is to be hoisted using two chains. If the resultant force is to be 600 N directed along the positive y axis, determine the magnitudes of forces FA and F, acting on each chain and the angle 0 of F, so that the magnitude of FB is a minimum. FA acts at 30° from the y axis, as shown. 30° 60° mtol #insnogmos aos seuss 8 FA *2-28. If the resultant force of the two tugboats is 3 kN, directed along the positive x axis, determine the required magnitude of force F and its direction 0. And y comp omponendi Probs. 2-26/27 C 10+ bne ovads jers baim ni qood of natoqmi al 11 brachnoifatanmovino beau ed of ai nouston sido sr) odgrond 29tugi ni egoitatasaray daudT saoqiuq aidi nol beau ton ons nie v) sontblod gniau vd bolangizob on 21- 2510 TO 10 alitw o zloduyg silati FA 2 KN Probs. 2-28/29/30 2-31. Three chains act on the bracket such that they create a resultant force having a magnitude of 500 lb. If two of the chains are subjected to known forces, as shown, determine the angle of the third chain measured clockwise from the positive x axis, so that the magnitude of force F in this chain is a minimum. All forces lie in the x-y plane. What is the magnitude of F? Hint: First find the resultant of the two known forces. Force F acts in this direction. 30° 200 lb Prob. 2-31 300 lb 30° 2 F