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Homework 3.B - Sp24
8 thoughts on “Homework 3.B - Sp24”
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What kind of free-body diagrams are we supposed to draw for something like this? Should a free-body diagram just be drawn for each plane (i.e. xy, xz, yz)?
As Nicholas said free body diagrams are not needed for this problem, since we are just looking at vector projections and you are given the tension forces.
I'm not sure if an FBD is required since the question only refers to projections of two static forces (however one would never hurt). Instead it may be more helpful to draw traces of the triangles in the coordinate planes to make sure you don't get confused between all of the different side lengths and angles (Thats what I did at least).
Did you solve for T during the problem or write it in terms of T when solving for the sin phi height?
You don't need to solve for T, your answers should be in terms of T.
Generally, many of these problems this semester are going to ask about solving something in terms of something else. In that case, there are no given numbers so the problem cannot be solved for a number, just leave the answer in terms of T.
Is there a way to use our answer for part C to confirm our answers for parts A & B?
In the a,b questions, the meaning of vector projection stands for the magnitude of projection Fab onto AB. Am I right?