1. The potential energy of a bucket of water of mass 20 kg on the first floor of the house is _____than the
potential energy of bucket of water of mass 10 kg on the same floor: *
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Here h & g = constant in both the cases
Heavier mass = 20 kg
Relatively lighter mass = 10 kg
∵ PE = mgh,
∴ PE′ (heavier mass) = 20gh
And, PE″ (lighter mass) = 10gh
Since, 20gh > 10 gh ⇒ PE′ > PE″.
Therefore, the potential energy of a bucket of water of mass 20 kg on the first floor of the house is MORE than the potential energy of bucket of water of mass 10 kg on the same floor.
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