Uncategorized A particle move along a curve given by the position vector r=cos (?t)i+sin (?t)j. For ? a constant. Find (i) The velocity of the particle at any given time t. Show that the velocity is perpendicular to the position vector r, August 7, 2017 Posted by admin 07 Aug 1. Determine the value of k so that the vectors u=<-3,k,4> and v=<3,-k,-4> are orthogonal. (3 Marks)
