# Physics

When an 84.7 kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 2.00E+3 J. By how much does the potential energy of a 17.3 kg child increase when the child climbs a normal staircase to the second floor?

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1. m g h
same g
same h

(17.3 / 84.7) 2*10^3

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