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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 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?
The moment of a force 10 N about a point 0 is 4 Nm. Calculate the distance of point of application of force from the point 0.
What is a centripetal force?
Name the force needed for circular motion. What is the direction of the force?
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 power spent (in H.P) by the man.
State the condition when the work done by the force is positive
What happens to the power if the time for doing work is reduced from t second to t/10 second?
Derive a relation between the S.I. and C.G.S. unit of force.
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.
For the following scenario, state whether the work done by gravity is positive, negative, or zero.
A person climbs a ladder.
