An Object of Mass M and Another Object of Mass

Multiple Choice

An object of mass m and another object of mass 2m are each forced to move along a circle of radius 1.0 m at a constant speed of 1.0 m/s. The magnitudes of their accelerations are:

A) equal
B)
C) in the ratio of 2 : 1
D) in the ratio of 4 : 1
E) zero