A: A body is released from a height. As it is falling vertically downwards, at some position, it explodes into fragments under purely internal force. Centre of mass of the system of fragments will keep moving along the original vertical line and also accelerate downwards with an acceleration g.
R: Whenever linear momentum of a system is conserved, its centre of mass always remains at rest.
A. If both A and B are true and R is the correct explanation of A
B. If both A and R are true but R is not correct explantion of A
C. If A is true but R is false
D. If A is false but R is true
