Locate the centroid of the ellipsoid of revolution. z x b y a 1 y2 b2 z2 a 2 Prob. 946

13.155 InExample 13.15(no added infois requirefrom example 13.15 other thanthecam shape and the angular velocity (a)in termsof polar listebelow), determinethevelocityof the camfollowerwhen 0 = 1350 and eqns coordinatesand (b)interms of Cartesiancoordinates(justonvertyour answers to(a)using Fig3.8 aboveit in yourbook). The shape of the camis givenby r =0.15/(1+ 0.5cos0)where r isinmeters. The angular velocityof the arm iconstantand= 4 rad/seccounter-clockwise. 13.156 InExample 13.15,determine the acceleratiof thecam followerwhen 0 =1350 (a)interms ofpolar coordinatesand (b) in terms Cartesiancoordinates(justonvertyour answers to (a)using Fig3.8 and eqns above it inyo