Question: Two floors in a building are separated by 4 . 1 m . People move between the two floors on a set of stairs. Determine

Two floors in a building are separated by 4.1 m. People move between the two floors on a set of stairs.
Determine the change in potential energy of a 3.0 kg backpack carried up the stairs.
Determine the change in potential energy of a person with weight 650 N that descends the stairs.

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