It is energy efficient. It requires no extra energy up to 60 lbs. Adding weight to the load on the head will not require any more energy because all we need is the energy for leg lifting. Balancing will be easier b/o higher center of mass (COM).
It is energy efficient. It requires no extra energy up to 60 lbs. Adding weight to the load on the head will not require any more energy because all we need is the energy for leg lifting. Balancing will be easier b/o higher center of mass (COM).