ENGG 1210 Study Guide - Midterm Guide: Fuselage, Unit Vector
26 Feb 2013
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E connected bar bc is used to increase the lever arm of the crescent wrench as shown. If a clockwise moment of ma = n (cid:1) m is needed to tighten the nut at a and the extension is d = mm, determine the required force f in order to develop this moment. E chain ab exerts a force of lb on the door at b. A boy stands out at the end of the diving board, which is supported by two springs a and. B, each having a sti ness of k = kn/m. In the position shown, the board is horizontal. If the boy has a mass of kg, determine the angle of tilt which the board makes with the horizontal a er he jumps o . Due to an unequal distribution of fuel in the wing tanks, the centres of gravity for the airplane fuselage a and wings b and c are located as shown.
