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# House Lights

APPH12-45HXJB

Mark climbs up onto the roof of his house to hang a new flood light above the garage. Being afraid of heights, Mark carefully looks over the edge and ponders a possible fall to the ground below. The top of the roof is 5 meters above the ground below.

If Mark has a mass of $65$ $kg$, what is Mark's gravitational potential energy?

A

$3188$ $J$

B

$325$ $J$

C

$49$ $J$

D

$638$ $J$