ECE105 Study Guide - Friction, Equilibrium Point, Angular Acceleration

• School: University of Waterloo
• Department: Electrical and Computer Engineering
• Course: ECE105
• Professor: Michael Balogh

Document Summary

Ece 105 - physics of electrical engineering 1. Force is a vector, and therefore includes direction. For any vector a, a has the same magnitude but opposite direction. Given (cid:126)ab we can nd a or b"s position based on the position of the other one (cid:126)ob = (cid:126)oa + (cid:126)ab for any (cid:126)ox is the location of x relative to the origin. We can break any vector into components by nding the angle between it and the plane we want to model it o of. for (cid:126)a = 6@20 , we can nd it"s components with relation to the standard x-y. Example: plane with (cid:126)ay = (cid:126)a cos 20 (cid:126)ax = (cid:126)a sin 20 . T (cid:126)a t = (cid:126)vf (cid:126)vi (cid:126)vf = (cid:126)vi + (cid:126)a t (cid:126)a = For the position vector (cid:126)d, (cid:126)df = (cid:126)di + (cid:126)vi t + 1. Circular motion r for very close points. ac = v2.