A $5\mathrm{.}64kg$ object falls freely $($ignore air resistance$),$ after being dropped from rest. Determine the initial kinetic energy $($in J$),$ the final kinetic energy $($in J$),$ and the change in kinetic energy $($in J$)$ for the following.

$($a$)$ the first meter of the fall

initial kinetic energy J

final kinetic energy J

change in kinetic energy J J

$($b$)$ the second meter of the fall

initial kinetic energy

final kinetic energy

J

change in kinetic energy

J

J