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प्रश्न
उत्तर
Work
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संबंधित प्रश्न
Name a common device where a gear train is used
A coolie is moving on a road with a luggage on his head. Does he perform work against the force of gravity? Give reason for your answer.
How is work related to energy?
1 J = ______ calorie.
State two disadvantages of producing hydroelectricity.
What are the quantities on which the amount of work done depends? How are they related to work?
Write the formula for work done on a body when the body moves at an angle to the direction of force. Give the meaning of each symbol used.
Give one example each in which a force does (a) positive work (b) negative work, and (c) zero work.
Its moment of a force scalar or a vector quantity?
Name the force acting away from the centre of circular path.
What is the SI unit of work?
A man carrying a suitcase in his hand is walking horizontally. What is the work done against gravity?
Complete the following sentences:
1 H.P. = ........ W.
A weight lifted a load of 200 kgf to a height of 2.5 m in 5 s. calculate: (i) the work done, and (ii) the power developed by him. Take g= 10 N kg-1.
Define the term work. Name the CGS and SI unit of work.
Define force. Is force a scalar or a vector quantity?
A coolie, with a load of 30 kg on his head, walks on the platform. If he walks a distance of 60 m, what is the work done by him?
What should be the characteristic of a source of energy?
What is the difference between renewable and non-renewable resources?
