are the objects described here in static equilibrium, dynamic equilibrium, or not in equilibrium at all?

Static equilibrium: It takes effort for you to lift a 200-pound barbell above your head. Dynamic equilibrium: A crane lifts a girder at a steady speed. A jet plane is flying at cruising altitude.What conditions must exist for static equilibrium? For an object to remain in static equilibrium, two requirements of equilibrium must be met. The object must be subject to zero net force, to start. The object's net torque must also be zero, which is the second condition.What brings about static balance?By balancing forces and torques, static equilibrium is produced. Only when the object is subject to zero net forces does it happen. The object should be subject to a clockwise and counterclockwise torque that are both equal in magnitude. Therefore, a static equilibrium object doesn't tilt or rotate; it just stays stable.To know more about static equilibrium visit:https://brainly.com/question/12804448#SPJ4