Suppose that you climb a flight of stairs while carrying a pail of water with a mass of 10kg. If the top of the stairs is 3 meters higher than the bottom, the potential energy of the pail increases by

(A) 10J. (B) 30J. (C) 100J. (D) 300J.

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Questions --- What this question is about

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20.2

Suppose that you climb a flight of stairs while carrying a pail of water with a mass of 10kg. If the top of the stairs is 3 meters higher than the bottom, the potential energy of the pail increases by

(A) 10J. --- No. Multiply the mass by height
and acceleration due to gravity

Try again.

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Questions --- What this question is about

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20.2

Suppose that you climb a flight of stairs while carrying a pail of water with a mass of 10kg. If the top of the stairs is 3 meters higher than the bottom, the potential energy of the pail increases by

(B) 30J. --- No. Multiply by g.

Try again.

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Questions --- What this question is about

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20.2

Suppose that you climb a flight of stairs while carrying a pail of water with a mass of 10kg. If the top of the stairs is 3 meters higher than the bottom, the potential energy of the pail increases by

(C) 100J. --- No. Multiply by height.

Try again.

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Questions --- What this question is about

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20.2

Suppose that you climb a flight of stairs while carrying a pail of water with a mass of 10kg. If the top of the stairs is 3 meters higher than the bottom, the potential energy of the pail increases by

(D) 300J. -- Yes. It increases by
mgh = (10kg)(10m/s)(3m) = 300J.

Check the other answers.

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Questions --- What this question is about

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20.2