Two Particles,A and B,are in Uniform Circular Motion About a Common

Multiple Choice

Two particles,A and B,are in uniform circular motion about a common center.The acceleration of particle A is 8.5 times that of particle B.The period of particle B is 2.0 times the period of particle A.The ratio of the radius of the motion of particle A to that of particle B is closest to

A) r_A/r_B = 2.1.
B) r_A/r_B = 4.3.
C) r_A/r_B = 18.
D) r_A/r_B = 0.24.
E) r_A/r_B = 17.