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प्रश्न
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संबंधित प्रश्न
Give one example each in which a force does (a) positive work (b) negative work, and (c) zero work.
When do we say that work is done? Write the formula for the work done by a body in moving up against gravity. Give the meaning of each symbol which occurs in it.
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?
What is meant by a translational motion? Give one example.
Draw a neat labeled diagram to show the direction of two forces acting on a body to produce rotation in it. Also mark the point about which rotation takes place.
How many joules are there in 1 mega joule?
Write an expression for work done by a force depends?
If an electric bulb of 100 watt is lighted for 2 hours, how much electric energy would be consumed?
