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Hanuman_2000 Posted 13 years ago
Grammar

To be

Hello,

The work is said to be done when a point of application of force is displaced in the direction of the force.

I could not understand the meaning of the words underlined.

I want to know the construction of the "is said to be done"?

Does it indicate for future time work?

Thanks.
  

Top answer

The work is said to be done = We say that work is done... These textbooks persist in using the passive voice.

— AlpheccaStars

  • The work is said to be done = We say that work is done...
  • These textbooks persist in using the passive voice.
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3 Answers
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The work is said to be done = We say that work is done...

These textbooks persist in using the passive voice.
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hanuman_2000The work is said to be done when
We say "Work is done" when ...

We give it the special name "work" when (something gets moved by a force).

CJ
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We say that work [in the physics definition] is done upon an object when a force applied to the object causes a displacement of the object in the direction of the force.

Mathematically: W = F x d, where W - work; F - force; d - displacement.
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