ENGG 202 Lecture 7: Tutorial 7 Solutions.pdf
26 Jan 2015
School
Department
Course
Professor
Document Summary
Moment of a couple: three couples are exerted on a plate as shown. Determine the moment exerted on the plate by each of the three couples if the force magnitudes are fa = 20 n, fb = 40 n, and. Fc = 80 n. the fc forces lie in the x-z plane. Express your answers in cartesian vector format with appropriate units. Solution strategy: multiply each force by its perpendicular distance and use the right hand rule to determine the direction and axis of rotation. Use r x f to determine the moment in cvf. Equivalent systems: three forces and a couple are applied to a beam in. To make system 2 and 3 equivalent to. Note that the directions of f and m shown in systems 2 and 3 are arbitrary and do not necessarily represent the true directions. Ans: a) f = -10j n: m = -10k nm, c) d = 1. 0 m.
