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प्रश्न
Power spent by a body depends on the time for which it does work.
पर्याय
True
False
MCQ
चूक किंवा बरोबर
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उत्तर
True.
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संबंधित प्रश्न
Work done by a boy depends on the time in which he does work.
When does a force perform work?
State two conditions when no work is done by a force.
State the S.I. unit of energy.
Give reasons for the following A teacher moving around in the class is doing work but a child standing and reading a book is not doing any work.
A water pump raises 50 litres of water through a height of 25 m in 5 s. Calculate the power of the pump required.
(Take g = 10 N kg-1 and density of water = 1000 kg m-3)
How much energy is gained by a box of mass 20 kg when a man, carrying the box waits for 5 minutes for a bus?
Name the practical unit of power.
The truck has to apply a force of 3000 N to overcome friction while moving with a uniform speed of 36 kmhr−1. What is the power developed by the truck?
Work done by this force at any instant is ______.
