Suppose that you climb a flight of stairs while carrying a pail of water with a mass of 10kg. The work that you do on the pail is actually done by the

(A) weight of the pail.
(B) force of your hand on the pail.
(C) force of the pail on your hand.
(D) force of your feet on the stairs.

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Questions --- What this question is about

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20.1

Suppose that you climb a flight of stairs while carrying a pail of water with a mass of 10kg. The work that you do on the pail is actually done by the

(A) weight of the pail. --- No.

That would be the work done by gravity.

Try again.

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Questions --- What this question is about

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20.1

Suppose that you climb a flight of stairs while carrying a pail of water with a mass of 10kg. The work that you do on the pail is actually done by the

(B) force of your hand on the pail. --- Yes.
The force you exert on the pail
times the distance you lift it.

Check the other answers.

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Questions --- What this question is about

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20.1

Suppose that you climb a flight of stairs while carrying a pail of water with a mass of 10kg. The work that you do on the pail is actually done by the

(C) force of the pail on your hand. --- No.

That force does work on you.

Try again.

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Questions --- What this question is about

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20.1

Suppose that you climb a flight of stairs while carrying a pail of water with a mass of 10kg. The work that you do on the pail is actually done by the

(D) force of your feet on the stairs. --- No.

That force does work on the stairs.

Try again.

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Questions --- What this question is about

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20.1