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संबंधित प्रश्न
Give reasons for the following. No work is done if a man is pushing against a wall.
MULTIPLE CHOICE TYPE
In an electric cell which in use, the change in energy is from:
A vessel containing 50 kg of water is placed at a height 15 m above the ground. Assuming the gravitational potential energy at ground to be zero, what will be the gravitational potential energy of water in the vessel? (g = 10 m s-2)
Write the formula for the work done on a body when a force acts on the body in the direction of its displacement. Give the meaning of each symbol which occurs in the formula.
Is work done a scalar or a vector physical quantity?
Define 'joule'.
Can work done be zero even if force acts on the body?
Name the physical quantity whose MKS units are kgm2s-3.
The weights of two bodies are 2.0 N and 2.0 kgf respectively what is the mass of each body?
What is work?
