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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
When do we say that work is done?
A force acts on a body and displaces it by a distance S in a direction at an angle θ with the direction of the force. What should be the value of θ to get the maximum positive work?
A boy of weight 40 kgf climbs up the 15 steps, each 15 cm high in 10 s and a girl of weight 20 kgf does the same in 5 s. Compare:
- the work done, and
- the power developed by them. Take g = 10 N kg-1.
What are the quantities on which the amount of work done depends? How are they related to work?
Is it possible that a force is acting on a body but still the work done is zero? Explain giving one example.
No work is done by a man moving on a horizontal road while carrying a box on his head. Explain.
Can work done be zero even if force acts on the body?
A is a push or a pull ______.
A car is accelerated on a levelled road and attains a velocity 4 times of its initial velocity. In this process the potential energy of the car
