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प्रश्न
State the SI unit of work.
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उत्तर
Joule is the SI unit of work. It is denoted by ‘J.
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संबंधित प्रश्न
A pair of bullocks exerts a force of 140 N on a plough. The field being ploughed is 15 m long. How much work is done in ploughing the length of the field?
Express joule in terms of erg.
Is it possible that a force is acting on a body but still the work done is zero? Explain giving one example.
Explain by an example that a body may possess energy even when it is not in motion.
Complete the following sentences:
Joule is the unit of .......
The work done by the heart is 1 Joule per beat. Calculate the power of the heart if it beats 72 times in one
If a ball is dropped on the sloping roof of a house, it acquires ______ and falls on the ground. That is the transformation of ______ energy into ______ energy takes place.
(kinetic, potential, motion)
