Recent content by lucfuture

Problem statement

Homework Equations e=(product of number of driving teeth)/(product of number of driven teeth) e=(n_{out}-n_{arm})/(n_{in}-n_{arm}) The Attempt at a Solution e=(N_{p1}/N_{s1})*(N_{s2}/N_{p2}) e=1.25926 e should be 0.7941 however From there out it seems pretty trivial. I just need...

And then you would use vector subtraction of vectors AM - AS to get the answer?

Ok a agree that M is (a+c)/2. For S I would say it is (a+b)/4 because M' would be (a+b)/2 by the same method we got M. And S is half the distance that M' is from point A. does that make sense?

You are correct! sorry. so S would be 1/2a+1/2b and M would be 31/2/2 a+31/2/2 c?

Homework Statement http://delphi.zsg-rottenburg.de/gif/1la1_pyramide.gif It says "M is the midpoint of BD and S is the center of triangle ABC. Express vector SM as a linear combination of A, B, and C." The Attempt at a Solution I think I am correct in saying that SM is half the...