The superheroine Xanaxa, who has a mass of 60.5 kg, is
pursuing the 76.1 kg archvillain Lexlax. She leaps from the
ground to the top of a 157 m high building, then dives off it
and comes to rest at the bottom of a 17.1 m deep excavation
where she finds Lexlax and neutralizes him.
Does all this bring about a net gain or a net loss of
gravitational potential energy?
loss
gain
Correct Answer
By what magnitude $U_g$ will Xanaxa's gravitational potential
energy change?
Use $g = 9.81 m/s^2$ for the gravitational acceleration.
$U_g$ = 103293.2 J
Incorrect Answer
