The superheroine Xanaxa with a mass of 607 kg is in a hairra

The superheroine Xanaxa, with a mass of 60.7 kg, is in a hair-raising chase after the 75.3-kg arch-villain Lexlax. She leaps from the ground to the top of a 187-m-high building, then dives off and comes to rest at the bottom of a 18.1-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 O Gain By how much? Answer with a positive number. Take g = 9.81 m/s2. Number

Solution

Here ,

m1 = 60.7 Kg

m2 = 75.3 Kg

change in height , h = 187 + 18.1

h = 205.1 m

as the person is falling down , there will be loss of gravitational potential energy

the correct option is LOSS

-----------------------------------

decrease in potential energy = m1 * g * h

decrease in potential energy = 60.7 * 9.8 * 205.1

decrease in potential energy = 122005 J

the decrease in potential energy is 122005 J


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