The correct relationship between mechanical energy, kinetic energy, and potential energy is ME= KE + PE, the correct option is A.
Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total stored energy in the system which is represented by total potential energy.
The expression for total mechanical energy is as follows
[tex]ME = KE + PE[/tex]
As total mechanical energy is the sum of all the kinetic as well potential energy stored in the system.
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