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Which statement is true for objects in dynamic equilibrium?

A. Objects have zero acceleration.
B. Objects have non-zero positive acceleration.
C. Objects have non-zero negative acceleration.
D. Objects can have positive as well as negative acceleration.
E. Objects have forces which are not balanced in at least one direction.



Answer :

GinnyAnswer

Final answer:

Dynamic equilibrium involves acceleration of the center of mass without rotation, with balanced external forces but no net external torque.


Explanation:

Dynamic equilibrium occurs when an object's center of mass accelerates, but the object doesn't rotate in its center of mass frame of reference. This means the sum of external forces is not zero, but the net external torque is zero. In this state, the object is not accelerating or decelerating.


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