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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 boy climbing up a staircase.
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उत्तर
Yes.
संबंधित प्रश्न
In each of the following a force, F is acting on an object of mass, m. The direction of displacement is from west to east, as shown by the longer arrow. Observe the diagrams carefully and state whether the work done by the force is negative, positive or zero.
An electron emitter must have _____________ work function and ___________ melting point.
Derive a relationship between S.I. and C.C.S. unit of work
State the energy transformation on the following:
Electricity is obtained from solar energy.
How much work is done when a force of 2 N moves a body through a distance of 10 cm in the direction of force?
What is the SI unit of work?
Write an expression for work done by a force depends?
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
A wind-mill is lifting water from a well.
What is power? How do you differentiate kilowatt from kilowatt-hour? The Jog Falls in Karnataka state are nearly 20 m high. 2000 tonnes of waterfalls from it in a minute. Calculate the equivalent power if all this energy can be utilized? (g = 10 m s–2)
