Answer :
Only the puck's mechanical energy (kinetic plus potential) is kept in tact.
The energy an object has when moving or the energy it retains owing to its location is referred to as mechanical energy, also known as kinetic energy or potential energy. Mechanical energy is another source of renewable energy. Many renewable energy sources rely on mechanical energy to efficiently create electricity or convert energy.
The short answer to what mechanical energy is ?
Mechanical energy is created by combining kinetic and potential energy. It is the force that controls the position and movement of an object. A compressed spring, for instance, has mechanical energy in the form of potential energy, while a moving vehicle has mechanical energy in the form of kinetic energy.
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