If enabled object is affected by physics simulation. This will make the object drop to the ground by the laws of physics using the world gravity. Physics simulation works only if the rig file used for the character supports physics simulation.

If disabled object is set to kinematic collision response. Kinematic objects only move out of their own will and are not subject to physics simulation. They ignore world gravity and levitate in place until moved.

The weight (or mass correctly spoken) of the object in kg. Used only if dynamic collision is enabled.