If net external force on a body adds up to zero, which of the following statem

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If net external force on a body adds up to zero, which of the following statements are not necessarily true?

Options:

A . Linear acceleration of the centre of mass is zero

B . Angular acceleration of the body has to be zero

C . Net External torque about any point need not be zero

D . Angular momentum about any axis may not be conserved

Answer: Option B
:
B

Angular acceleration of the body may not necessarily be zero about any axis about which net external torque is non-zero.

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