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प्रश्न
A boy does work when he pushes against a brick wall. (yes/no).
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उत्तर
Yes
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संबंधित प्रश्न
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?
State the law of conservation of energy.
Define 1 joule of 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.
Explain by an example that a body may possess energy even when it is not in motion.
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.
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?
Can two agents, doing the same work, have different power?
A is a push or a pull ______.
