Law of Conservation of Mechanical Energy

Law of conservation of mechanical energy states the total mecanical energy in a system remains constant as long as the only force acting are conservative forces.

 

Law of conservation of mechanical energy formula

\(\large{ PE_i + KE_i = PE_f + KE_f }\)

Where:

\(\large{ KE_f }\) = final kinetic energy

\(\large{ PE_f }\) = final potential energy

\(\large{ KE_i }\) = initial kinetic energy

\(\large{ PE_i }\) = initial potential energy