The oscillation of rod OA about O is defined by the relation θ 5 (3yπ)(sin πt), where θ and t are expressed in radians and seconds, respectively. Collar B slides along the rod so that its distance from O is r 5 6(1 2 e22t ) where r and t are expressed in inches and seconds, respectively. When t 5 1 s, determine (a) the velocity of the collar, (b) the acceleration of the collar, (c) the acceleration of the collar relative to the ro