What is the difference between work done on a body by a force and work done by a body?

  • A
    Work done on a body increases its energy,while work done by a body decreases its energy.
  • B
    Work done on a body decreases its energy,while work done by a body increases its energy.
  • C
    Both represent the same physical process.
  • D
    Work done on a body is always zero,while work done by a body is always positive.

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