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A bucket full of water is drawn up by a ...

A bucket full of water is drawn up by a person. In this case the work done by gravitational force is

A

negative because the force and displacement are in opposite directions

B

positive because the force and displacement are in the same direction

C

negative because the force and displacement are in the same direction

D

positive because the force and displacement are in opposite directions

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The correct Answer is:
A
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NARAYNA-WORK , ENERGY & POWER -C.U.Q
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  2. A man pushes a wall and fails to displace it.He does

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  3. A bucket full of water is drawn up by a person. In this case the work ...

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  4. A man is rowing a boat upstream and inspite of that the boat is found ...

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  6. An agent is moving a positively charged body towards another fixed pos...

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  7. Work done by the force of friction

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  8. The slope of the kinetic energy versus position vector curve gives the...

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  9. Which of the following statement is correct?

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  10. The change in kinetic energy per unit 'space' (distance) is equal to

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  11. When the momentum of a body a doubled, the kinetic energy is

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  12. For the same kinetic energy, the momentum shall be maximum for which o...

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  13. If the momentum of a particle is plotted on X-axis and its kinetic ene...

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  14. When two identical balls are moving with equal speed in opposite direc...

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  16. The KE of a freely falling body

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  17. Consider the following two statements: A. Linear momentum of a syste...

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  19. If the force acting on a body is inversely proportional to its speed, ...

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  20. Which of the following statement is correct

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