1.

(A) : If body or a system has neither translational nor rotational motion then it is in complete mechanical equilibrium (R) : A body or system is said to be in mechanical equilibrium when net force and net torque acting on the body are zero

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Both 'A' and 'R' are true 'R' is the CORRECT EXPLANATION of 'A'
Both 'A' and 'R' are true 'R' is not the correct explanation of 'A'
A' is true and 'R' is FALSE
A' is false and 'R' are true

Answer :A


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