Two point-like objects P and Q are undergoing circular motion at

constant speeds. Figure Q5.8 shows four possible combinations of paths for the two objects during the same time interval. Choose which is correct for

i. the periods of the objects to be equal, ii. the speeds of the objects to be equal, and

iii. the radial accelerations of the objects to be equal.

(a) (b) P Q P O (c) (d) - P Q P O