Part A

A $0\mathrm{.}25kg$ apple falls from a tree to the ground, $4\mathrm{.}0$

$m$ below. Ignore air resistance. Take ground level

to be $y=0.$

Determine the apple's kinetic energy, $K,$ the gravitational potential energy of the system, $U,$ and the total mechanical

energy of the system, $E,$ when the apple's height above the ground is $4\mathrm{.}0m.$

Express your answers using two significant figures separated by commas.

$K_a,U_a,E_a=$

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Part B

Determine the apple's kinetic energy, $K,$ the gravitational potential energy of the system, $U,$ and the total mechanical

energy of the system, $E,$ when the apple's height above the ground is $3\mathrm{.}0m.$

Express your answers using two significant figures separated by commas.

$K_b,U_b,E_b=$obrace$(1+$dotsdots$+$dots$1)$