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संबंधित प्रश्न
Give an example when work done by the force of gravity acting on a body is zero even though the body gets displaced from its initial position.
How is kilowatt hour related to joule?
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.
Name two places in india where electricity is generated from nuclear power plants.
What is a centripetal force?
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.
State two conditions for work to be done.
State the practical unit mainly used in mechanical engineering and write down its equivalent in watt.
What happens to the power if the time for doing work is reduced from t second to t/10 second?
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.
