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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
A body is moved in a direction opposite to the direction of force acting on it. State whether the work is done by the force or work is done against the force
Name the quality which is measured in kWh.
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 the quality which is measured in eV
A body of mass m is moving with a uniform velocity u. A force is applied on the body due to which its velocity changes from u to v. How much work is being done by the force?
What is meant by a rotatory motion? Give one example.
What do you mean by equilibrium of a body?
State the principle of moments.
The world record for weight lifting was held by Sergei Didyk of the USSR. He lifted 261 kg to a height of 2.3 m in 4s; find:
(a) Weight lifted by him
(b) Work done by him
(c) Power developed by him. (g = 10m/s2)
State the C.G.S. unit of work. How it is related to its S.I. unit?
