The superheroine Xanaxa, who has a mass of 65.7 kg , is pursuing the 70.3 kg archvillain Lexlax. She leaps from the ground to the top of a 175 m high building then dives off it and comes to rest at the bottom of a 15.5 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 or gain?
By how much? Answer with a positive number. Take g = 9.81 m/s2.
answer in J