In which of the following exmples of motion, can the body be considered approxinmately a point object :
(a) a railway carriage moving without jerks between two two stations.
(b) a mondey sistting on top of a man cycling smoothly on a circulat track. (c ) a spinning cricket ball that turns sharply on hitting the round . (d) a tumbling beake theat has slopped off the edge of a table ?

Options

A. a,b
B. b,c
C. a,c
D. b,d

Answer

A