Given that a steel beam is winched up to the top floor of a new buiding, let's determine the new foem of energy.
Mechanical energy is the sum of kinetic energy and potential energy.
The steel beam currently has a mechanical energy. Since the steel beam is now at the top of a new building, the mechanical energy is being converted to potential energy.
Potential energy is the energy held by an object due to its position relative to other objects. It is the energy stored from an object.
Since the steel beam is now at the top of the building, it has the potential to fall.
Therefore, the mechanical energy is now being converted to potential energy.
ANSWER:
Potential energy