Answer
($a$) and ($c$) will differ because some of the mechanical energy is lost in the process of converting it to kinetic energy.
Therefore the mechanical energy ($c$) cannot be equal to the kinetic energy ($a$)
Work Step by Step
($a$) and ($c$) will differ because some of the mechanical energy is lost in the process of converting it to kinetic energy.
Therefore the mechanical energy ($c$) cannot be equal to the kinetic energy ($a$)
