Are the objects described here in static equilibrium, dynamic equilibrium, or not in equilibrium at all?...
Are the objects described here in static equilibrium, dynamic equilibrium, or not in equilibrium at all? ( Explain how the answers are correct )A) A 200 pound barbell is held over your head. (static equilibrium)B) A girder is lifted at constant speed by a crane. ( Dynamic equilibrium)C) A girder is being lowered into place. It is slowing down. (not in equilibrium)D) A jet plane has reached its cruising speed and altitude. (Dynamic equilibrium)E) A box in the back of...