According to the guinness book of world records (1990 edition, p. 169), the highest rotary speed ever attained was 2010 m/s (4500 mph). the rotating rod was 15.2 cm (6 in) long. assume the speed quoted is that of the end of the rod. what is the centripetal acceleration of the end of the rod? answer in units of m/s 2 . 009 (part 2 of 3) 10.0 points if you were to attach a(n) 0.843 g object to the end of the rod, what force would be needed to hold it on the rod? answer in units of n. 010 (part 3 of 3) 10.0 points what is the period of rotation of the rod? answer in units of s