Question

according to the 1990 guinness book of world records, the highest rotary speed ever attained was 2010 m/s. the rotating rod was 15.3 cm long. assume that the speed quoted is that of the end of the rod. a. calculate the centripetal acceleration of the rod? b. a lost lizard with a mass of 1 gram attached itself to the end of the rod, how much force would the little lizard need to hold on the rod? c. if 1 newton = 0.22 lbs, how many pounds of force would the lizard need to hold on to the end of the rod?

Answer 1

© cento pestal acceleration = y2 = 2.644 167m) s? acco force = mac= 2640 5.88N. f= 58.9. 3lbs