Solved: Rank the vectors in Figure 331 in order of

Lectures 6 a nd 7 Relative Motion Motion from other p erspectives Uniform Circular Motion ­ Speed is fixed ­ Velocity and acceleration n ot 0 ­ Directionally changing velocity ­ Acceleration called “radial or centripetal” acceleration EQUATION a = v 2 c r Time it takes to complete one revolution is one “period”, T (in seconds) EQUATION v = 2πr = 1 circumference T 1 period Rotational (Angular) Rotation θis ositive g oing counterclockwise f rom p ositive x­axis (x,y) or (r, θ s coordinates arc length