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Motion of centre of mass depends upon the external force.

The position of centre of mass depends upon the shape of the body and the distribution of mass

The location of centre of mass depends on the reference frame used locate it

In the process of explosion some changes may occur in momentum of individual fragments due to internal forces but the motion of the centre of mass is unaltered.

answer is C.

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Detailed Solution

During explosion, the individual fragments will change its motion, while the motion of center of mass remains unaltered as its motion is dependent only on the force of gravity. The location of center of mass does not depend on the frame of reference.

The position of COM depends on the shape and distribution of mass

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