- Is there a general expression for the mechanical power that can be extracted from a moving vehicle by means of an inertial device?
Assume that a contraption with loosely suspended internal weights is fixed to the body of a vehicle that is moving in free 3D space without gravitational sources nearby. Given the position and orientation of the vehicle as functions of time, how can one tell whether it is possible for the contraption to extract power from the movement? Is there a general expression for this? I am particularly interested in continuous extraction of power from repetitive movement.