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प्रश्न
In the following case write yes, if the work is being done and no if no work is being done.
A man trying to push a wall.
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उत्तर
No.
संबंधित प्रश्न
A man having a box on his head, climbs up a slope and another man having an identical box walks the same distance on a levelled road.
Who does more work against the force of gravity and why?
How is the unit horsepower related to the S.I. unit of power?
A satellite revolves around the earth in a circular orbit. What is the work done by the force of gravity? Give reason.
State two factors on which power spent by a source depends. Explain your answer with examples.
A man spends 7.4 KJ energy in displacing a body by 74 m in the direction in which he applies force in 2.5 s. Calculate the force applied.
What is meant by a rotatory motion? Give one example.
What do you mean by uniform circular motion?
