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प्रश्न
The energy of a body is its capacity to do .........
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उत्तर
The energy of a body is its capacity to do work.
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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?
State two conditions when no work is done by a force.
Write the expression for work done by a force.
A weight lifter lifted a load of 200 kgf to a height of 2.5 m in 5 s. Calculate:
- the work done, and
- the power developed by him. Take g = 10 N kg-1
Ravi applied a force of 10 N and moved a book 30 cm in the direction of the force. How much was the work done by Ravi?
Complete the following sentences:
Kilowatt is the unit of ....... and kWh is the unit of
Fill in the boxe to show the corresponding energy transformation.
Is power a scalar or a vector quantity?
Work done by this force at any instant is ______.
