Higdon, Hibbeler, mechanics, static , problems solving for force systems Eq 2-29

Описание: حل اسألة كتب هكدن وهيبلر لمادة الميكانيك الهندسي لطلبة الصف الاول قسم الهندسة المدنية
•2–29. 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 FB acting on
each chain and the angle of FB so that the magnitude of FB
is a minimum. FA acts at 30° from the y axis, as shown.