Choose the wrong statement

Easy

A

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.
B

Motion of centre of mass depends upon the external force.
C

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

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

Solution

For a rigid body , position of COM is fixed relative to the body. If the orientation of the body is altered , position of COM relative to the body does not change.Hence statement -(3) is wrong,

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