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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 moving on the rough ground.
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उत्तर
Yes.
संबंधित प्रश्न
If the power of a motor is 100 kW, at what speed can it raise a load of 50,000 N?
A satellite revolves around the earth in a circular orbit. What is the work done by the force of gravity? Give reason.
A coolie X Carrying a load on his head climbs up a slope and another coolie Y carrying the identical load on his head move the same distance on a frictionless horizontal platform. Who does more work? Explain the reason.
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Name the quality which is measured in kWh.
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A machine raises a load of 750 N through a height of 16 m in 5 seconds. Calculate the power at which the machine works.
A man weighing 700 N runs up a flight of 15 steps, each 20 cm high, in 5 seconds. Calculate the power of the man.
